Home / 28,082.25-38,753.70-15,335.11

Finding the Fourth Proportional to 28,082.25, 38,753.70 and 15,335.11

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Solution

The fourth proportional to 28,082.25, 38,753.70 and 15,335.11 is: 21,162.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082.25 : 38,753.70 = 15,335.11 : x
  2. Step 2: Convert to fraction form
    28,082.25/38,753.70 = 15,335.11/x
  3. Step 3: Cross multiply
    28,082.25x = 38,753.70 × 15,335.11
  4. Step 4: Simplify right side
    28,082.25x = 594,292,155.52
  5. Step 5: Solve for x
    x = 594,292,155.52/28,082.25
  6. Step 6: Final answer
    x = 21,162.55

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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.