Home / 21,000.62-31,508.22-9,322.04

Finding the Fourth Proportional to 21,000.62, 31,508.22 and 9,322.04

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Solution

The fourth proportional to 21,000.62, 31,508.22 and 9,322.04 is: 13,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000.62 : 31,508.22 = 9,322.04 : x
  2. Step 2: Convert to fraction form
    21,000.62/31,508.22 = 9,322.04/x
  3. Step 3: Cross multiply
    21,000.62x = 31,508.22 × 9,322.04
  4. Step 4: Simplify right side
    21,000.62x = 293,720,887.17
  5. Step 5: Solve for x
    x = 293,720,887.17/21,000.62
  6. Step 6: Final answer
    x = 13,986.30

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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.