Home / 39,712.69-59,551.54-18,658.71

Finding the Fourth Proportional to 39,712.69, 59,551.54 and 18,658.71

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Solution

The fourth proportional to 39,712.69, 59,551.54 and 18,658.71 is: 27,979.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,712.69 : 59,551.54 = 18,658.71 : x
  2. Step 2: Convert to fraction form
    39,712.69/59,551.54 = 18,658.71/x
  3. Step 3: Cross multiply
    39,712.69x = 59,551.54 × 18,658.71
  4. Step 4: Simplify right side
    39,712.69x = 1,111,154,914.91
  5. Step 5: Solve for x
    x = 1,111,154,914.91/39,712.69
  6. Step 6: Final answer
    x = 27,979.85

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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.