Home / 28,040.09-38,685.55-17,974.08

Finding the Fourth Proportional to 28,040.09, 38,685.55 and 17,974.08

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Solution

The fourth proportional to 28,040.09, 38,685.55 and 17,974.08 is: 24,797.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.09 : 38,685.55 = 17,974.08 : x
  2. Step 2: Convert to fraction form
    28,040.09/38,685.55 = 17,974.08/x
  3. Step 3: Cross multiply
    28,040.09x = 38,685.55 × 17,974.08
  4. Step 4: Simplify right side
    28,040.09x = 695,337,170.54
  5. Step 5: Solve for x
    x = 695,337,170.54/28,040.09
  6. Step 6: Final answer
    x = 24,797.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.