Home / 31,593.56-47,390.20-12,869.42

Finding the Fourth Proportional to 31,593.56, 47,390.20 and 12,869.42

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Solution

The fourth proportional to 31,593.56, 47,390.20 and 12,869.42 is: 19,304.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,593.56 : 47,390.20 = 12,869.42 : x
  2. Step 2: Convert to fraction form
    31,593.56/47,390.20 = 12,869.42/x
  3. Step 3: Cross multiply
    31,593.56x = 47,390.20 × 12,869.42
  4. Step 4: Simplify right side
    31,593.56x = 609,884,118.56
  5. Step 5: Solve for x
    x = 609,884,118.56/31,593.56
  6. Step 6: Final answer
    x = 19,304.07

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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.