Home / 21,909.15-32,892.84-14,817.21

Finding the Fourth Proportional to 21,909.15, 32,892.84 and 14,817.21

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Solution

The fourth proportional to 21,909.15, 32,892.84 and 14,817.21 is: 22,245.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,909.15 : 32,892.84 = 14,817.21 : x
  2. Step 2: Convert to fraction form
    21,909.15/32,892.84 = 14,817.21/x
  3. Step 3: Cross multiply
    21,909.15x = 32,892.84 × 14,817.21
  4. Step 4: Simplify right side
    21,909.15x = 487,380,117.78
  5. Step 5: Solve for x
    x = 487,380,117.78/21,909.15
  6. Step 6: Final answer
    x = 22,245.51

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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.