Home / 39,712.67-59,551.50-18,658.70

Finding the Fourth Proportional to 39,712.67, 59,551.50 and 18,658.70

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Solution

The fourth proportional to 39,712.67, 59,551.50 and 18,658.70 is: 27,979.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,712.67 : 59,551.50 = 18,658.70 : x
  2. Step 2: Convert to fraction form
    39,712.67/59,551.50 = 18,658.70/x
  3. Step 3: Cross multiply
    39,712.67x = 59,551.50 × 18,658.70
  4. Step 4: Simplify right side
    39,712.67x = 1,111,153,275.29
  5. Step 5: Solve for x
    x = 1,111,153,275.29/39,712.67
  6. Step 6: Final answer
    x = 27,979.82

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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.