Home / 21,539.81-32,297.55-8,377.11

Finding the Fourth Proportional to 21,539.81, 32,297.55 and 8,377.11

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Solution

The fourth proportional to 21,539.81, 32,297.55 and 8,377.11 is: 12,560.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,539.81 : 32,297.55 = 8,377.11 : x
  2. Step 2: Convert to fraction form
    21,539.81/32,297.55 = 8,377.11/x
  3. Step 3: Cross multiply
    21,539.81x = 32,297.55 × 8,377.11
  4. Step 4: Simplify right side
    21,539.81x = 270,560,129.08
  5. Step 5: Solve for x
    x = 270,560,129.08/21,539.81
  6. Step 6: Final answer
    x = 12,560.94

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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.