Home / 39,956.38-59,989.95-20,248.78

Finding the Fourth Proportional to 39,956.38, 59,989.95 and 20,248.78

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Solution

The fourth proportional to 39,956.38, 59,989.95 and 20,248.78 is: 30,401.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,956.38 : 59,989.95 = 20,248.78 : x
  2. Step 2: Convert to fraction form
    39,956.38/59,989.95 = 20,248.78/x
  3. Step 3: Cross multiply
    39,956.38x = 59,989.95 × 20,248.78
  4. Step 4: Simplify right side
    39,956.38x = 1,214,723,299.76
  5. Step 5: Solve for x
    x = 1,214,723,299.76/39,956.38
  6. Step 6: Final answer
    x = 30,401.24

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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.