Home / 21,081.32-29,092.38-11,651.48

Finding the Fourth Proportional to 21,081.32, 29,092.38 and 11,651.48

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Solution

The fourth proportional to 21,081.32, 29,092.38 and 11,651.48 is: 16,079.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081.32 : 29,092.38 = 11,651.48 : x
  2. Step 2: Convert to fraction form
    21,081.32/29,092.38 = 11,651.48/x
  3. Step 3: Cross multiply
    21,081.32x = 29,092.38 × 11,651.48
  4. Step 4: Simplify right side
    21,081.32x = 338,969,283.72
  5. Step 5: Solve for x
    x = 338,969,283.72/21,081.32
  6. Step 6: Final answer
    x = 16,079.13

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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.