Home / 21,587.68-32,331.84-18,013.96

Finding the Fourth Proportional to 21,587.68, 32,331.84 and 18,013.96

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Solution

The fourth proportional to 21,587.68, 32,331.84 and 18,013.96 is: 26,979.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,587.68 : 32,331.84 = 18,013.96 : x
  2. Step 2: Convert to fraction form
    21,587.68/32,331.84 = 18,013.96/x
  3. Step 3: Cross multiply
    21,587.68x = 32,331.84 × 18,013.96
  4. Step 4: Simplify right side
    21,587.68x = 582,424,472.49
  5. Step 5: Solve for x
    x = 582,424,472.49/21,587.68
  6. Step 6: Final answer
    x = 26,979.48

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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.