Home / 31,684.86-47,508.06-15,871.50

Finding the Fourth Proportional to 31,684.86, 47,508.06 and 15,871.50

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Solution

The fourth proportional to 31,684.86, 47,508.06 and 15,871.50 is: 23,797.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,684.86 : 47,508.06 = 15,871.50 : x
  2. Step 2: Convert to fraction form
    31,684.86/47,508.06 = 15,871.50/x
  3. Step 3: Cross multiply
    31,684.86x = 47,508.06 × 15,871.50
  4. Step 4: Simplify right side
    31,684.86x = 754,024,174.29
  5. Step 5: Solve for x
    x = 754,024,174.29/31,684.86
  6. Step 6: Final answer
    x = 23,797.62

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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.