Home / 31,456.23-47,213.51-15,884.79

Finding the Fourth Proportional to 31,456.23, 47,213.51 and 15,884.79

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Solution

The fourth proportional to 31,456.23, 47,213.51 and 15,884.79 is: 23,841.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,456.23 : 47,213.51 = 15,884.79 : x
  2. Step 2: Convert to fraction form
    31,456.23/47,213.51 = 15,884.79/x
  3. Step 3: Cross multiply
    31,456.23x = 47,213.51 × 15,884.79
  4. Step 4: Simplify right side
    31,456.23x = 749,976,612.09
  5. Step 5: Solve for x
    x = 749,976,612.09/31,456.23
  6. Step 6: Final answer
    x = 23,841.91

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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.