Home / 21,610.13-29,822.30-12,049.74

Finding the Fourth Proportional to 21,610.13, 29,822.30 and 12,049.74

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Solution

The fourth proportional to 21,610.13, 29,822.30 and 12,049.74 is: 16,628.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,610.13 : 29,822.30 = 12,049.74 : x
  2. Step 2: Convert to fraction form
    21,610.13/29,822.30 = 12,049.74/x
  3. Step 3: Cross multiply
    21,610.13x = 29,822.30 × 12,049.74
  4. Step 4: Simplify right side
    21,610.13x = 359,350,961.20
  5. Step 5: Solve for x
    x = 359,350,961.20/21,610.13
  6. Step 6: Final answer
    x = 16,628.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.