Home / 21,600.62-32,400.90-12,360.14

Finding the Fourth Proportional to 21,600.62, 32,400.90 and 12,360.14

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Solution

The fourth proportional to 21,600.62, 32,400.90 and 12,360.14 is: 18,540.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,600.62 : 32,400.90 = 12,360.14 : x
  2. Step 2: Convert to fraction form
    21,600.62/32,400.90 = 12,360.14/x
  3. Step 3: Cross multiply
    21,600.62x = 32,400.90 × 12,360.14
  4. Step 4: Simplify right side
    21,600.62x = 400,479,660.13
  5. Step 5: Solve for x
    x = 400,479,660.13/21,600.62
  6. Step 6: Final answer
    x = 18,540.19

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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.