Home / 31,889.04-47,781.72-18,753.36

Finding the Fourth Proportional to 31,889.04, 47,781.72 and 18,753.36

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Solution

The fourth proportional to 31,889.04, 47,781.72 and 18,753.36 is: 28,099.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,889.04 : 47,781.72 = 18,753.36 : x
  2. Step 2: Convert to fraction form
    31,889.04/47,781.72 = 18,753.36/x
  3. Step 3: Cross multiply
    31,889.04x = 47,781.72 × 18,753.36
  4. Step 4: Simplify right side
    31,889.04x = 896,067,796.58
  5. Step 5: Solve for x
    x = 896,067,796.58/31,889.04
  6. Step 6: Final answer
    x = 28,099.55

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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.