Home / 16,020.28-23,998.20-7,990.84

Finding the Fourth Proportional to 16,020.28, 23,998.20 and 7,990.84

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Solution

The fourth proportional to 16,020.28, 23,998.20 and 7,990.84 is: 11,970.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,020.28 : 23,998.20 = 7,990.84 : x
  2. Step 2: Convert to fraction form
    16,020.28/23,998.20 = 7,990.84/x
  3. Step 3: Cross multiply
    16,020.28x = 23,998.20 × 7,990.84
  4. Step 4: Simplify right side
    16,020.28x = 191,765,776.49
  5. Step 5: Solve for x
    x = 191,765,776.49/16,020.28
  6. Step 6: Final answer
    x = 11,970.19

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Similar ratio
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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.