Home / 28,344.72-42,517.50-9,876.72

Finding the Fourth Proportional to 28,344.72, 42,517.50 and 9,876.72

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Solution

The fourth proportional to 28,344.72, 42,517.50 and 9,876.72 is: 14,815.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,344.72 : 42,517.50 = 9,876.72 : x
  2. Step 2: Convert to fraction form
    28,344.72/42,517.50 = 9,876.72/x
  3. Step 3: Cross multiply
    28,344.72x = 42,517.50 × 9,876.72
  4. Step 4: Simplify right side
    28,344.72x = 419,933,442.60
  5. Step 5: Solve for x
    x = 419,933,442.60/28,344.72
  6. Step 6: Final answer
    x = 14,815.23

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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.