Home / 22,562.58-31,139.97-13,611.39

Finding the Fourth Proportional to 22,562.58, 31,139.97 and 13,611.39

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Solution

The fourth proportional to 22,562.58, 31,139.97 and 13,611.39 is: 18,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,562.58 : 31,139.97 = 13,611.39 : x
  2. Step 2: Convert to fraction form
    22,562.58/31,139.97 = 13,611.39/x
  3. Step 3: Cross multiply
    22,562.58x = 31,139.97 × 13,611.39
  4. Step 4: Simplify right side
    22,562.58x = 423,858,276.26
  5. Step 5: Solve for x
    x = 423,858,276.26/22,562.58
  6. Step 6: Final answer
    x = 18,785.90

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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.