Home / 21,531.18-32,172.08-16,506.06

Finding the Fourth Proportional to 21,531.18, 32,172.08 and 16,506.06

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Solution

The fourth proportional to 21,531.18, 32,172.08 and 16,506.06 is: 24,663.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,531.18 : 32,172.08 = 16,506.06 : x
  2. Step 2: Convert to fraction form
    21,531.18/32,172.08 = 16,506.06/x
  3. Step 3: Cross multiply
    21,531.18x = 32,172.08 × 16,506.06
  4. Step 4: Simplify right side
    21,531.18x = 531,034,282.80
  5. Step 5: Solve for x
    x = 531,034,282.80/21,531.18
  6. Step 6: Final answer
    x = 24,663.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.