Home / 47,515.70-71,277.39-12,455.25

Finding the Fourth Proportional to 47,515.70, 71,277.39 and 12,455.25

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Solution

The fourth proportional to 47,515.70, 71,277.39 and 12,455.25 is: 18,683.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,515.70 : 71,277.39 = 12,455.25 : x
  2. Step 2: Convert to fraction form
    47,515.70/71,277.39 = 12,455.25/x
  3. Step 3: Cross multiply
    47,515.70x = 71,277.39 × 12,455.25
  4. Step 4: Simplify right side
    47,515.70x = 887,777,711.80
  5. Step 5: Solve for x
    x = 887,777,711.80/47,515.70
  6. Step 6: Final answer
    x = 18,683.88

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1.5x scale

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.