Home / 28,770.89-43,139.05-11,248.97

Finding the Fourth Proportional to 28,770.89, 43,139.05 and 11,248.97

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Solution

The fourth proportional to 28,770.89, 43,139.05 and 11,248.97 is: 16,866.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,770.89 : 43,139.05 = 11,248.97 : x
  2. Step 2: Convert to fraction form
    28,770.89/43,139.05 = 11,248.97/x
  3. Step 3: Cross multiply
    28,770.89x = 43,139.05 × 11,248.97
  4. Step 4: Simplify right side
    28,770.89x = 485,269,635.46
  5. Step 5: Solve for x
    x = 485,269,635.46/28,770.89
  6. Step 6: Final answer
    x = 16,866.69

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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.