Home / 31,819.38-47,737.80-14,064.30

Finding the Fourth Proportional to 31,819.38, 47,737.80 and 14,064.30

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Solution

The fourth proportional to 31,819.38, 47,737.80 and 14,064.30 is: 21,100.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,819.38 : 47,737.80 = 14,064.30 : x
  2. Step 2: Convert to fraction form
    31,819.38/47,737.80 = 14,064.30/x
  3. Step 3: Cross multiply
    31,819.38x = 47,737.80 × 14,064.30
  4. Step 4: Simplify right side
    31,819.38x = 671,398,740.54
  5. Step 5: Solve for x
    x = 671,398,740.54/31,819.38
  6. Step 6: Final answer
    x = 21,100.31

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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.