Home / 36,406.13-54,609.12-20,812.82

Finding the Fourth Proportional to 36,406.13, 54,609.12 and 20,812.82

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Solution

The fourth proportional to 36,406.13, 54,609.12 and 20,812.82 is: 31,219.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,406.13 : 54,609.12 = 20,812.82 : x
  2. Step 2: Convert to fraction form
    36,406.13/54,609.12 = 20,812.82/x
  3. Step 3: Cross multiply
    36,406.13x = 54,609.12 × 20,812.82
  4. Step 4: Simplify right side
    36,406.13x = 1,136,569,511.87
  5. Step 5: Solve for x
    x = 1,136,569,511.87/36,406.13
  6. Step 6: Final answer
    x = 31,219.18

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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.