Home / 22,255.39-30,711.76-13,181.19

Finding the Fourth Proportional to 22,255.39, 30,711.76 and 13,181.19

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Solution

The fourth proportional to 22,255.39, 30,711.76 and 13,181.19 is: 18,189.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,255.39 : 30,711.76 = 13,181.19 : x
  2. Step 2: Convert to fraction form
    22,255.39/30,711.76 = 13,181.19/x
  3. Step 3: Cross multiply
    22,255.39x = 30,711.76 × 13,181.19
  4. Step 4: Simplify right side
    22,255.39x = 404,817,543.79
  5. Step 5: Solve for x
    x = 404,817,543.79/22,255.39
  6. Step 6: Final answer
    x = 18,189.64

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Half scale
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Double scale
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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.