Home / 31,388.27-47,082.50-7,695.92

Finding the Fourth Proportional to 31,388.27, 47,082.50 and 7,695.92

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Solution

The fourth proportional to 31,388.27, 47,082.50 and 7,695.92 is: 11,543.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,388.27 : 47,082.50 = 7,695.92 : x
  2. Step 2: Convert to fraction form
    31,388.27/47,082.50 = 7,695.92/x
  3. Step 3: Cross multiply
    31,388.27x = 47,082.50 × 7,695.92
  4. Step 4: Simplify right side
    31,388.27x = 362,343,232.63
  5. Step 5: Solve for x
    x = 362,343,232.63/31,388.27
  6. Step 6: Final answer
    x = 11,543.90

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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.