Home / 21,478.64-32,227.18-10,393.61

Finding the Fourth Proportional to 21,478.64, 32,227.18 and 10,393.61

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Solution

The fourth proportional to 21,478.64, 32,227.18 and 10,393.61 is: 15,594.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,478.64 : 32,227.18 = 10,393.61 : x
  2. Step 2: Convert to fraction form
    21,478.64/32,227.18 = 10,393.61/x
  3. Step 3: Cross multiply
    21,478.64x = 32,227.18 × 10,393.61
  4. Step 4: Simplify right side
    21,478.64x = 334,956,553.20
  5. Step 5: Solve for x
    x = 334,956,553.20/21,478.64
  6. Step 6: Final answer
    x = 15,594.87

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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.