Home / 21,414.80-32,126.12-6,622.71

Finding the Fourth Proportional to 21,414.80, 32,126.12 and 6,622.71

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Solution

The fourth proportional to 21,414.80, 32,126.12 and 6,622.71 is: 9,935.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,414.80 : 32,126.12 = 6,622.71 : x
  2. Step 2: Convert to fraction form
    21,414.80/32,126.12 = 6,622.71/x
  3. Step 3: Cross multiply
    21,414.80x = 32,126.12 × 6,622.71
  4. Step 4: Simplify right side
    21,414.80x = 212,761,943.07
  5. Step 5: Solve for x
    x = 212,761,943.07/21,414.80
  6. Step 6: Final answer
    x = 9,935.28

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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.