Home / 21,247.11-29,315.79-12,292.02

Finding the Fourth Proportional to 21,247.11, 29,315.79 and 12,292.02

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Solution

The fourth proportional to 21,247.11, 29,315.79 and 12,292.02 is: 16,959.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,247.11 : 29,315.79 = 12,292.02 : x
  2. Step 2: Convert to fraction form
    21,247.11/29,315.79 = 12,292.02/x
  3. Step 3: Cross multiply
    21,247.11x = 29,315.79 × 12,292.02
  4. Step 4: Simplify right side
    21,247.11x = 360,350,277.00
  5. Step 5: Solve for x
    x = 360,350,277.00/21,247.11
  6. Step 6: Final answer
    x = 16,959.97

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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.