Home / 31,765.96-47,650.02-15,138.28

Finding the Fourth Proportional to 31,765.96, 47,650.02 and 15,138.28

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Solution

The fourth proportional to 31,765.96, 47,650.02 and 15,138.28 is: 22,707.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,765.96 : 47,650.02 = 15,138.28 : x
  2. Step 2: Convert to fraction form
    31,765.96/47,650.02 = 15,138.28/x
  3. Step 3: Cross multiply
    31,765.96x = 47,650.02 × 15,138.28
  4. Step 4: Simplify right side
    31,765.96x = 721,339,344.77
  5. Step 5: Solve for x
    x = 721,339,344.77/31,765.96
  6. Step 6: Final answer
    x = 22,707.93

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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.