Home / 31,456.13-47,184.19-8,082.56

Finding the Fourth Proportional to 31,456.13, 47,184.19 and 8,082.56

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Solution

The fourth proportional to 31,456.13, 47,184.19 and 8,082.56 is: 12,123.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,456.13 : 47,184.19 = 8,082.56 : x
  2. Step 2: Convert to fraction form
    31,456.13/47,184.19 = 8,082.56/x
  3. Step 3: Cross multiply
    31,456.13x = 47,184.19 × 8,082.56
  4. Step 4: Simplify right side
    31,456.13x = 381,369,144.48
  5. Step 5: Solve for x
    x = 381,369,144.48/31,456.13
  6. Step 6: Final answer
    x = 12,123.84

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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.