Home / 28,110.06-42,123.33-11,449.71

Finding the Fourth Proportional to 28,110.06, 42,123.33 and 11,449.71

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Solution

The fourth proportional to 28,110.06, 42,123.33 and 11,449.71 is: 17,157.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.06 : 42,123.33 = 11,449.71 : x
  2. Step 2: Convert to fraction form
    28,110.06/42,123.33 = 11,449.71/x
  3. Step 3: Cross multiply
    28,110.06x = 42,123.33 × 11,449.71
  4. Step 4: Simplify right side
    28,110.06x = 482,299,912.73
  5. Step 5: Solve for x
    x = 482,299,912.73/28,110.06
  6. Step 6: Final answer
    x = 17,157.56

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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.