Home / 21,380.49-32,057.15-18,753.27

Finding the Fourth Proportional to 21,380.49, 32,057.15 and 18,753.27

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Solution

The fourth proportional to 21,380.49, 32,057.15 and 18,753.27 is: 28,117.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,380.49 : 32,057.15 = 18,753.27 : x
  2. Step 2: Convert to fraction form
    21,380.49/32,057.15 = 18,753.27/x
  3. Step 3: Cross multiply
    21,380.49x = 32,057.15 × 18,753.27
  4. Step 4: Simplify right side
    21,380.49x = 601,176,295.61
  5. Step 5: Solve for x
    x = 601,176,295.61/21,380.49
  6. Step 6: Final answer
    x = 28,117.98

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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.