Home / 22,210.24-30,645.12-13,259.20

Finding the Fourth Proportional to 22,210.24, 30,645.12 and 13,259.20

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Solution

The fourth proportional to 22,210.24, 30,645.12 and 13,259.20 is: 18,294.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,210.24 : 30,645.12 = 13,259.20 : x
  2. Step 2: Convert to fraction form
    22,210.24/30,645.12 = 13,259.20/x
  3. Step 3: Cross multiply
    22,210.24x = 30,645.12 × 13,259.20
  4. Step 4: Simplify right side
    22,210.24x = 406,329,775.10
  5. Step 5: Solve for x
    x = 406,329,775.10/22,210.24
  6. Step 6: Final answer
    x = 18,294.70

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Half scale
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Double scale
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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.