Home / 21,591.23-32,331.47-18,269.73

Finding the Fourth Proportional to 21,591.23, 32,331.47 and 18,269.73

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Solution

The fourth proportional to 21,591.23, 32,331.47 and 18,269.73 is: 27,357.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,591.23 : 32,331.47 = 18,269.73 : x
  2. Step 2: Convert to fraction form
    21,591.23/32,331.47 = 18,269.73/x
  3. Step 3: Cross multiply
    21,591.23x = 32,331.47 × 18,269.73
  4. Step 4: Simplify right side
    21,591.23x = 590,687,136.05
  5. Step 5: Solve for x
    x = 590,687,136.05/21,591.23
  6. Step 6: Final answer
    x = 27,357.74

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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.