Home / 21,672.96-32,521.68-13,373.28

Finding the Fourth Proportional to 21,672.96, 32,521.68 and 13,373.28

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Solution

The fourth proportional to 21,672.96, 32,521.68 and 13,373.28 is: 20,067.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,672.96 : 32,521.68 = 13,373.28 : x
  2. Step 2: Convert to fraction form
    21,672.96/32,521.68 = 13,373.28/x
  3. Step 3: Cross multiply
    21,672.96x = 32,521.68 × 13,373.28
  4. Step 4: Simplify right side
    21,672.96x = 434,921,532.71
  5. Step 5: Solve for x
    x = 434,921,532.71/21,672.96
  6. Step 6: Final answer
    x = 20,067.47

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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.