Home / 31,788.39-47,666.10-13,064.97

Finding the Fourth Proportional to 31,788.39, 47,666.10 and 13,064.97

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Solution

The fourth proportional to 31,788.39, 47,666.10 and 13,064.97 is: 19,590.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,788.39 : 47,666.10 = 13,064.97 : x
  2. Step 2: Convert to fraction form
    31,788.39/47,666.10 = 13,064.97/x
  3. Step 3: Cross multiply
    31,788.39x = 47,666.10 × 13,064.97
  4. Step 4: Simplify right side
    31,788.39x = 622,756,166.52
  5. Step 5: Solve for x
    x = 622,756,166.52/31,788.39
  6. Step 6: Final answer
    x = 19,590.68

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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.