Home / 28,471.97-42,708.10-18,673.29

Finding the Fourth Proportional to 28,471.97, 42,708.10 and 18,673.29

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Solution

The fourth proportional to 28,471.97, 42,708.10 and 18,673.29 is: 28,010.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471.97 : 42,708.10 = 18,673.29 : x
  2. Step 2: Convert to fraction form
    28,471.97/42,708.10 = 18,673.29/x
  3. Step 3: Cross multiply
    28,471.97x = 42,708.10 × 18,673.29
  4. Step 4: Simplify right side
    28,471.97x = 797,500,885.13
  5. Step 5: Solve for x
    x = 797,500,885.13/28,471.97
  6. Step 6: Final answer
    x = 28,010.04

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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.