Home / 47,716.52-71,569.30-12,658.91

Finding the Fourth Proportional to 47,716.52, 71,569.30 and 12,658.91

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Solution

The fourth proportional to 47,716.52, 71,569.30 and 12,658.91 is: 18,986.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,716.52 : 71,569.30 = 12,658.91 : x
  2. Step 2: Convert to fraction form
    47,716.52/71,569.30 = 12,658.91/x
  3. Step 3: Cross multiply
    47,716.52x = 71,569.30 × 12,658.91
  4. Step 4: Simplify right side
    47,716.52x = 905,989,327.46
  5. Step 5: Solve for x
    x = 905,989,327.46/47,716.52
  6. Step 6: Final answer
    x = 18,986.91

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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.