Home / 39,836.16-59,747.28-12,127.68

Finding the Fourth Proportional to 39,836.16, 59,747.28 and 12,127.68

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Solution

The fourth proportional to 39,836.16, 59,747.28 and 12,127.68 is: 18,189.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,836.16 : 59,747.28 = 12,127.68 : x
  2. Step 2: Convert to fraction form
    39,836.16/59,747.28 = 12,127.68/x
  3. Step 3: Cross multiply
    39,836.16x = 59,747.28 × 12,127.68
  4. Step 4: Simplify right side
    39,836.16x = 724,595,892.71
  5. Step 5: Solve for x
    x = 724,595,892.71/39,836.16
  6. Step 6: Final answer
    x = 18,189.40

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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.