Home / 21,839.42-32,761.33-8,688.74

Finding the Fourth Proportional to 21,839.42, 32,761.33 and 8,688.74

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Solution

The fourth proportional to 21,839.42, 32,761.33 and 8,688.74 is: 13,033.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,839.42 : 32,761.33 = 8,688.74 : x
  2. Step 2: Convert to fraction form
    21,839.42/32,761.33 = 8,688.74/x
  3. Step 3: Cross multiply
    21,839.42x = 32,761.33 × 8,688.74
  4. Step 4: Simplify right side
    21,839.42x = 284,654,492.90
  5. Step 5: Solve for x
    x = 284,654,492.90/21,839.42
  6. Step 6: Final answer
    x = 13,033.98

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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.