Home / 21,381.18-32,058.18-18,753.96

Finding the Fourth Proportional to 21,381.18, 32,058.18 and 18,753.96

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Solution

The fourth proportional to 21,381.18, 32,058.18 and 18,753.96 is: 28,119.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,381.18 : 32,058.18 = 18,753.96 : x
  2. Step 2: Convert to fraction form
    21,381.18/32,058.18 = 18,753.96/x
  3. Step 3: Cross multiply
    21,381.18x = 32,058.18 × 18,753.96
  4. Step 4: Simplify right side
    21,381.18x = 601,217,825.39
  5. Step 5: Solve for x
    x = 601,217,825.39/21,381.18
  6. Step 6: Final answer
    x = 28,119.02

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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.