Home / 21,253.74-31,884.24-6,464.12

Finding the Fourth Proportional to 21,253.74, 31,884.24 and 6,464.12

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Solution

The fourth proportional to 21,253.74, 31,884.24 and 6,464.12 is: 9,697.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,253.74 : 31,884.24 = 6,464.12 : x
  2. Step 2: Convert to fraction form
    21,253.74/31,884.24 = 6,464.12/x
  3. Step 3: Cross multiply
    21,253.74x = 31,884.24 × 6,464.12
  4. Step 4: Simplify right side
    21,253.74x = 206,103,553.47
  5. Step 5: Solve for x
    x = 206,103,553.47/21,253.74
  6. Step 6: Final answer
    x = 9,697.28

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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.