Home / 28,432.89-42,654.20-15,947.55

Finding the Fourth Proportional to 28,432.89, 42,654.20 and 15,947.55

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Solution

The fourth proportional to 28,432.89, 42,654.20 and 15,947.55 is: 23,924.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,432.89 : 42,654.20 = 15,947.55 : x
  2. Step 2: Convert to fraction form
    28,432.89/42,654.20 = 15,947.55/x
  3. Step 3: Cross multiply
    28,432.89x = 42,654.20 × 15,947.55
  4. Step 4: Simplify right side
    28,432.89x = 680,229,907.47
  5. Step 5: Solve for x
    x = 680,229,907.47/28,432.89
  6. Step 6: Final answer
    x = 23,924.05

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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.