Home / 21,288.24-31,932.88-6,497.12

Finding the Fourth Proportional to 21,288.24, 31,932.88 and 6,497.12

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Solution

The fourth proportional to 21,288.24, 31,932.88 and 6,497.12 is: 9,745.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,288.24 : 31,932.88 = 6,497.12 : x
  2. Step 2: Convert to fraction form
    21,288.24/31,932.88 = 6,497.12/x
  3. Step 3: Cross multiply
    21,288.24x = 31,932.88 × 6,497.12
  4. Step 4: Simplify right side
    21,288.24x = 207,471,753.31
  5. Step 5: Solve for x
    x = 207,471,753.31/21,288.24
  6. Step 6: Final answer
    x = 9,745.84

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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.