Home / 31,267.39-43,153.17-18,519.54

Finding the Fourth Proportional to 31,267.39, 43,153.17 and 18,519.54

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Solution

The fourth proportional to 31,267.39, 43,153.17 and 18,519.54 is: 25,559.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,267.39 : 43,153.17 = 18,519.54 : x
  2. Step 2: Convert to fraction form
    31,267.39/43,153.17 = 18,519.54/x
  3. Step 3: Cross multiply
    31,267.39x = 43,153.17 × 18,519.54
  4. Step 4: Simplify right side
    31,267.39x = 799,176,765.34
  5. Step 5: Solve for x
    x = 799,176,765.34/31,267.39
  6. Step 6: Final answer
    x = 25,559.44

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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.