Home / 31,917.52-47,875.60-8,543.96

Finding the Fourth Proportional to 31,917.52, 47,875.60 and 8,543.96

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Solution

The fourth proportional to 31,917.52, 47,875.60 and 8,543.96 is: 12,815.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,917.52 : 47,875.60 = 8,543.96 : x
  2. Step 2: Convert to fraction form
    31,917.52/47,875.60 = 8,543.96/x
  3. Step 3: Cross multiply
    31,917.52x = 47,875.60 × 8,543.96
  4. Step 4: Simplify right side
    31,917.52x = 409,047,211.38
  5. Step 5: Solve for x
    x = 409,047,211.38/31,917.52
  6. Step 6: Final answer
    x = 12,815.76

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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.