Home / 28,581.73-42,865.67-11,932.72

Finding the Fourth Proportional to 28,581.73, 42,865.67 and 11,932.72

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Solution

The fourth proportional to 28,581.73, 42,865.67 and 11,932.72 is: 17,896.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,581.73 : 42,865.67 = 11,932.72 : x
  2. Step 2: Convert to fraction form
    28,581.73/42,865.67 = 11,932.72/x
  3. Step 3: Cross multiply
    28,581.73x = 42,865.67 × 11,932.72
  4. Step 4: Simplify right side
    28,581.73x = 511,503,960.39
  5. Step 5: Solve for x
    x = 511,503,960.39/28,581.73
  6. Step 6: Final answer
    x = 17,896.19

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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.