Home / 21,374.20-32,063.12-5,581.33

Finding the Fourth Proportional to 21,374.20, 32,063.12 and 5,581.33

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Solution

The fourth proportional to 21,374.20, 32,063.12 and 5,581.33 is: 8,372.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,374.20 : 32,063.12 = 5,581.33 : x
  2. Step 2: Convert to fraction form
    21,374.20/32,063.12 = 5,581.33/x
  3. Step 3: Cross multiply
    21,374.20x = 32,063.12 × 5,581.33
  4. Step 4: Simplify right side
    21,374.20x = 178,954,853.55
  5. Step 5: Solve for x
    x = 178,954,853.55/21,374.20
  6. Step 6: Final answer
    x = 8,372.47

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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.