Home / 47,516.40-71,274.90-12,455.75

Finding the Fourth Proportional to 47,516.40, 71,274.90 and 12,455.75

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Solution

The fourth proportional to 47,516.40, 71,274.90 and 12,455.75 is: 18,683.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,516.40 : 71,274.90 = 12,455.75 : x
  2. Step 2: Convert to fraction form
    47,516.40/71,274.90 = 12,455.75/x
  3. Step 3: Cross multiply
    47,516.40x = 71,274.90 × 12,455.75
  4. Step 4: Simplify right side
    47,516.40x = 887,782,335.68
  5. Step 5: Solve for x
    x = 887,782,335.68/47,516.40
  6. Step 6: Final answer
    x = 18,683.70

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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.