Home / 20,882.46-28,817.88-12,498.96

Finding the Fourth Proportional to 20,882.46, 28,817.88 and 12,498.96

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Solution

The fourth proportional to 20,882.46, 28,817.88 and 12,498.96 is: 17,248.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,882.46 : 28,817.88 = 12,498.96 : x
  2. Step 2: Convert to fraction form
    20,882.46/28,817.88 = 12,498.96/x
  3. Step 3: Cross multiply
    20,882.46x = 28,817.88 × 12,498.96
  4. Step 4: Simplify right side
    20,882.46x = 360,193,529.40
  5. Step 5: Solve for x
    x = 360,193,529.40/20,882.46
  6. Step 6: Final answer
    x = 17,248.62

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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.