Home / 28,046.46-38,691.90-20,474.58

Finding the Fourth Proportional to 28,046.46, 38,691.90 and 20,474.58

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Solution

The fourth proportional to 28,046.46, 38,691.90 and 20,474.58 is: 28,246.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,046.46 : 38,691.90 = 20,474.58 : x
  2. Step 2: Convert to fraction form
    28,046.46/38,691.90 = 20,474.58/x
  3. Step 3: Cross multiply
    28,046.46x = 38,691.90 × 20,474.58
  4. Step 4: Simplify right side
    28,046.46x = 792,200,401.90
  5. Step 5: Solve for x
    x = 792,200,401.90/28,046.46
  6. Step 6: Final answer
    x = 28,246.00

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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.