Home / 31,747.20-47,556.54-15,123.30

Finding the Fourth Proportional to 31,747.20, 47,556.54 and 15,123.30

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Solution

The fourth proportional to 31,747.20, 47,556.54 and 15,123.30 is: 22,654.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,747.20 : 47,556.54 = 15,123.30 : x
  2. Step 2: Convert to fraction form
    31,747.20/47,556.54 = 15,123.30/x
  3. Step 3: Cross multiply
    31,747.20x = 47,556.54 × 15,123.30
  4. Step 4: Simplify right side
    31,747.20x = 719,211,821.38
  5. Step 5: Solve for x
    x = 719,211,821.38/31,747.20
  6. Step 6: Final answer
    x = 22,654.34

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1.5x scale

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.