Home / 31,788-43,865.28-17,641.62

Finding the Fourth Proportional to 31,788, 43,865.28 and 17,641.62

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Solution

The fourth proportional to 31,788, 43,865.28 and 17,641.62 is: 24,344.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,788 : 43,865.28 = 17,641.62 : x
  2. Step 2: Convert to fraction form
    31,788/43,865.28 = 17,641.62/x
  3. Step 3: Cross multiply
    31,788x = 43,865.28 × 17,641.62
  4. Step 4: Simplify right side
    31,788x = 773,854,600.95
  5. Step 5: Solve for x
    x = 773,854,600.95/31,788
  6. Step 6: Final answer
    x = 24,344.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.