Home / 21,613.11-32,397.46-8,282.49

Finding the Fourth Proportional to 21,613.11, 32,397.46 and 8,282.49

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Solution

The fourth proportional to 21,613.11, 32,397.46 and 8,282.49 is: 12,415.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,613.11 : 32,397.46 = 8,282.49 : x
  2. Step 2: Convert to fraction form
    21,613.11/32,397.46 = 8,282.49/x
  3. Step 3: Cross multiply
    21,613.11x = 32,397.46 × 8,282.49
  4. Step 4: Simplify right side
    21,613.11x = 268,331,496.28
  5. Step 5: Solve for x
    x = 268,331,496.28/21,613.11
  6. Step 6: Final answer
    x = 12,415.22

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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.