Home / 22,210.74-30,645.81-13,259.70

Finding the Fourth Proportional to 22,210.74, 30,645.81 and 13,259.70

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Solution

The fourth proportional to 22,210.74, 30,645.81 and 13,259.70 is: 18,295.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,210.74 : 30,645.81 = 13,259.70 : x
  2. Step 2: Convert to fraction form
    22,210.74/30,645.81 = 13,259.70/x
  3. Step 3: Cross multiply
    22,210.74x = 30,645.81 × 13,259.70
  4. Step 4: Simplify right side
    22,210.74x = 406,354,246.86
  5. Step 5: Solve for x
    x = 406,354,246.86/22,210.74
  6. Step 6: Final answer
    x = 18,295.39

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Find fourth proportional to 11,105.37, 15,322.91 and 6,629.85
Half scale
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Double scale
Find fourth proportional to 22,211.74, 30,647.19 and 13,260.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.