Home / 31,719.92-47,583.96-10,650.90

Finding the Fourth Proportional to 31,719.92, 47,583.96 and 10,650.90

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Solution

The fourth proportional to 31,719.92, 47,583.96 and 10,650.90 is: 15,977.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,719.92 : 47,583.96 = 10,650.90 : x
  2. Step 2: Convert to fraction form
    31,719.92/47,583.96 = 10,650.90/x
  3. Step 3: Cross multiply
    31,719.92x = 47,583.96 × 10,650.90
  4. Step 4: Simplify right side
    31,719.92x = 506,811,999.56
  5. Step 5: Solve for x
    x = 506,811,999.56/31,719.92
  6. Step 6: Final answer
    x = 15,977.72

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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.