Home / 21,626.61-29,844.67-12,195.11

Finding the Fourth Proportional to 21,626.61, 29,844.67 and 12,195.11

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Solution

The fourth proportional to 21,626.61, 29,844.67 and 12,195.11 is: 16,829.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,626.61 : 29,844.67 = 12,195.11 : x
  2. Step 2: Convert to fraction form
    21,626.61/29,844.67 = 12,195.11/x
  3. Step 3: Cross multiply
    21,626.61x = 29,844.67 × 12,195.11
  4. Step 4: Simplify right side
    21,626.61x = 363,959,033.56
  5. Step 5: Solve for x
    x = 363,959,033.56/21,626.61
  6. Step 6: Final answer
    x = 16,829.22

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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.