Home / 20,386.79-30,593.18-9,294.59

Finding the Fourth Proportional to 20,386.79, 30,593.18 and 9,294.59

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Solution

The fourth proportional to 20,386.79, 30,593.18 and 9,294.59 is: 13,947.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386.79 : 30,593.18 = 9,294.59 : x
  2. Step 2: Convert to fraction form
    20,386.79/30,593.18 = 9,294.59/x
  3. Step 3: Cross multiply
    20,386.79x = 30,593.18 × 9,294.59
  4. Step 4: Simplify right side
    20,386.79x = 284,350,935.17
  5. Step 5: Solve for x
    x = 284,350,935.17/20,386.79
  6. Step 6: Final answer
    x = 13,947.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.