Home / 21,422.22-29,565.45-11,993.82

Finding the Fourth Proportional to 21,422.22, 29,565.45 and 11,993.82

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Solution

The fourth proportional to 21,422.22, 29,565.45 and 11,993.82 is: 16,553.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,422.22 : 29,565.45 = 11,993.82 : x
  2. Step 2: Convert to fraction form
    21,422.22/29,565.45 = 11,993.82/x
  3. Step 3: Cross multiply
    21,422.22x = 29,565.45 × 11,993.82
  4. Step 4: Simplify right side
    21,422.22x = 354,602,685.52
  5. Step 5: Solve for x
    x = 354,602,685.52/21,422.22
  6. Step 6: Final answer
    x = 16,553.03

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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.