Home / 28,747.52-39,657.52-18,677.60

Finding the Fourth Proportional to 28,747.52, 39,657.52 and 18,677.60

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Solution

The fourth proportional to 28,747.52, 39,657.52 and 18,677.60 is: 25,765.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.52 : 39,657.52 = 18,677.60 : x
  2. Step 2: Convert to fraction form
    28,747.52/39,657.52 = 18,677.60/x
  3. Step 3: Cross multiply
    28,747.52x = 39,657.52 × 18,677.60
  4. Step 4: Simplify right side
    28,747.52x = 740,707,295.55
  5. Step 5: Solve for x
    x = 740,707,295.55/28,747.52
  6. Step 6: Final answer
    x = 25,765.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.