Home / 28,414.20-42,621.24-7,637.70

Finding the Fourth Proportional to 28,414.20, 42,621.24 and 7,637.70

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Solution

The fourth proportional to 28,414.20, 42,621.24 and 7,637.70 is: 11,456.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,414.20 : 42,621.24 = 7,637.70 : x
  2. Step 2: Convert to fraction form
    28,414.20/42,621.24 = 7,637.70/x
  3. Step 3: Cross multiply
    28,414.20x = 42,621.24 × 7,637.70
  4. Step 4: Simplify right side
    28,414.20x = 325,528,244.75
  5. Step 5: Solve for x
    x = 325,528,244.75/28,414.20
  6. Step 6: Final answer
    x = 11,456.53

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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.