Home / 28,748.80-43,123.20-25,177.60

Finding the Fourth Proportional to 28,748.80, 43,123.20 and 25,177.60

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Solution

The fourth proportional to 28,748.80, 43,123.20 and 25,177.60 is: 37,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748.80 : 43,123.20 = 25,177.60 : x
  2. Step 2: Convert to fraction form
    28,748.80/43,123.20 = 25,177.60/x
  3. Step 3: Cross multiply
    28,748.80x = 43,123.20 × 25,177.60
  4. Step 4: Simplify right side
    28,748.80x = 1,085,738,680.32
  5. Step 5: Solve for x
    x = 1,085,738,680.32/28,748.80
  6. Step 6: Final answer
    x = 37,766.40

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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.