Home / 30,680.47-42,337.50-17,250.92

Finding the Fourth Proportional to 30,680.47, 42,337.50 and 17,250.92

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Solution

The fourth proportional to 30,680.47, 42,337.50 and 17,250.92 is: 23,805.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,680.47 : 42,337.50 = 17,250.92 : x
  2. Step 2: Convert to fraction form
    30,680.47/42,337.50 = 17,250.92/x
  3. Step 3: Cross multiply
    30,680.47x = 42,337.50 × 17,250.92
  4. Step 4: Simplify right side
    30,680.47x = 730,360,791.68
  5. Step 5: Solve for x
    x = 730,360,791.68/30,680.47
  6. Step 6: Final answer
    x = 23,805.40

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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.