Home / 21,562.88-32,355.40-8,922.02

Finding the Fourth Proportional to 21,562.88, 32,355.40 and 8,922.02

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Solution

The fourth proportional to 21,562.88, 32,355.40 and 8,922.02 is: 13,387.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,562.88 : 32,355.40 = 8,922.02 : x
  2. Step 2: Convert to fraction form
    21,562.88/32,355.40 = 8,922.02/x
  3. Step 3: Cross multiply
    21,562.88x = 32,355.40 × 8,922.02
  4. Step 4: Simplify right side
    21,562.88x = 288,675,525.91
  5. Step 5: Solve for x
    x = 288,675,525.91/21,562.88
  6. Step 6: Final answer
    x = 13,387.61

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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.