Home / 22,146.12-30,555.36-13,645.44

Finding the Fourth Proportional to 22,146.12, 30,555.36 and 13,645.44

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Solution

The fourth proportional to 22,146.12, 30,555.36 and 13,645.44 is: 18,826.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,146.12 : 30,555.36 = 13,645.44 : x
  2. Step 2: Convert to fraction form
    22,146.12/30,555.36 = 13,645.44/x
  3. Step 3: Cross multiply
    22,146.12x = 30,555.36 × 13,645.44
  4. Step 4: Simplify right side
    22,146.12x = 416,941,331.56
  5. Step 5: Solve for x
    x = 416,941,331.56/22,146.12
  6. Step 6: Final answer
    x = 18,826.83

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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.