Home / 39,861.20-59,799.68-11,781.76

Finding the Fourth Proportional to 39,861.20, 59,799.68 and 11,781.76

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Solution

The fourth proportional to 39,861.20, 59,799.68 and 11,781.76 is: 17,674.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,861.20 : 59,799.68 = 11,781.76 : x
  2. Step 2: Convert to fraction form
    39,861.20/59,799.68 = 11,781.76/x
  3. Step 3: Cross multiply
    39,861.20x = 59,799.68 × 11,781.76
  4. Step 4: Simplify right side
    39,861.20x = 704,545,477.84
  5. Step 5: Solve for x
    x = 704,545,477.84/39,861.20
  6. Step 6: Final answer
    x = 17,674.97

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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.