Home / 21,708.91-32,560.03-8,380.01

Finding the Fourth Proportional to 21,708.91, 32,560.03 and 8,380.01

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Solution

The fourth proportional to 21,708.91, 32,560.03 and 8,380.01 is: 12,568.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708.91 : 32,560.03 = 8,380.01 : x
  2. Step 2: Convert to fraction form
    21,708.91/32,560.03 = 8,380.01/x
  3. Step 3: Cross multiply
    21,708.91x = 32,560.03 × 8,380.01
  4. Step 4: Simplify right side
    21,708.91x = 272,853,238.59
  5. Step 5: Solve for x
    x = 272,853,238.59/21,708.91
  6. Step 6: Final answer
    x = 12,568.72

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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.