Home / 31,856.32-47,790.23-13,125.93

Finding the Fourth Proportional to 31,856.32, 47,790.23 and 13,125.93

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Solution

The fourth proportional to 31,856.32, 47,790.23 and 13,125.93 is: 19,691.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,856.32 : 47,790.23 = 13,125.93 : x
  2. Step 2: Convert to fraction form
    31,856.32/47,790.23 = 13,125.93/x
  3. Step 3: Cross multiply
    31,856.32x = 47,790.23 × 13,125.93
  4. Step 4: Simplify right side
    31,856.32x = 627,291,306.22
  5. Step 5: Solve for x
    x = 627,291,306.22/31,856.32
  6. Step 6: Final answer
    x = 19,691.27

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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.