Home / 29,011.80-43,519.92-12,371.90

Finding the Fourth Proportional to 29,011.80, 43,519.92 and 12,371.90

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Solution

The fourth proportional to 29,011.80, 43,519.92 and 12,371.90 is: 18,558.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,011.80 : 43,519.92 = 12,371.90 : x
  2. Step 2: Convert to fraction form
    29,011.80/43,519.92 = 12,371.90/x
  3. Step 3: Cross multiply
    29,011.80x = 43,519.92 × 12,371.90
  4. Step 4: Simplify right side
    29,011.80x = 538,424,036.39
  5. Step 5: Solve for x
    x = 538,424,036.39/29,011.80
  6. Step 6: Final answer
    x = 18,558.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.