Home / 38,278.82-57,421.12-10,198.76

Finding the Fourth Proportional to 38,278.82, 57,421.12 and 10,198.76

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Solution

The fourth proportional to 38,278.82, 57,421.12 and 10,198.76 is: 15,298.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,278.82 : 57,421.12 = 10,198.76 : x
  2. Step 2: Convert to fraction form
    38,278.82/57,421.12 = 10,198.76/x
  3. Step 3: Cross multiply
    38,278.82x = 57,421.12 × 10,198.76
  4. Step 4: Simplify right side
    38,278.82x = 585,624,221.81
  5. Step 5: Solve for x
    x = 585,624,221.81/38,278.82
  6. Step 6: Final answer
    x = 15,298.91

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1.5x scale

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.