Home / 21,126.26-31,680.05-6,332.42

Finding the Fourth Proportional to 21,126.26, 31,680.05 and 6,332.42

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Solution

The fourth proportional to 21,126.26, 31,680.05 and 6,332.42 is: 9,495.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,126.26 : 31,680.05 = 6,332.42 : x
  2. Step 2: Convert to fraction form
    21,126.26/31,680.05 = 6,332.42/x
  3. Step 3: Cross multiply
    21,126.26x = 31,680.05 × 6,332.42
  4. Step 4: Simplify right side
    21,126.26x = 200,611,192.16
  5. Step 5: Solve for x
    x = 200,611,192.16/21,126.26
  6. Step 6: Final answer
    x = 9,495.82

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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.