Home / 28,029.38-38,680.61-15,454.13

Finding the Fourth Proportional to 28,029.38, 38,680.61 and 15,454.13

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Solution

The fourth proportional to 28,029.38, 38,680.61 and 15,454.13 is: 21,326.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029.38 : 38,680.61 = 15,454.13 : x
  2. Step 2: Convert to fraction form
    28,029.38/38,680.61 = 15,454.13/x
  3. Step 3: Cross multiply
    28,029.38x = 38,680.61 × 15,454.13
  4. Step 4: Simplify right side
    28,029.38x = 597,774,904.75
  5. Step 5: Solve for x
    x = 597,774,904.75/28,029.38
  6. Step 6: Final answer
    x = 21,326.73

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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.