Home / 21,521.97-32,282.76-12,750.57

Finding the Fourth Proportional to 21,521.97, 32,282.76 and 12,750.57

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Solution

The fourth proportional to 21,521.97, 32,282.76 and 12,750.57 is: 19,125.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,521.97 : 32,282.76 = 12,750.57 : x
  2. Step 2: Convert to fraction form
    21,521.97/32,282.76 = 12,750.57/x
  3. Step 3: Cross multiply
    21,521.97x = 32,282.76 × 12,750.57
  4. Step 4: Simplify right side
    21,521.97x = 411,623,591.17
  5. Step 5: Solve for x
    x = 411,623,591.17/21,521.97
  6. Step 6: Final answer
    x = 19,125.74

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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.