Home / 25,387.03-38,072.30-8,742.97

Finding the Fourth Proportional to 25,387.03, 38,072.30 and 8,742.97

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Solution

The fourth proportional to 25,387.03, 38,072.30 and 8,742.97 is: 13,111.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,387.03 : 38,072.30 = 8,742.97 : x
  2. Step 2: Convert to fraction form
    25,387.03/38,072.30 = 8,742.97/x
  3. Step 3: Cross multiply
    25,387.03x = 38,072.30 × 8,742.97
  4. Step 4: Simplify right side
    25,387.03x = 332,864,933.02
  5. Step 5: Solve for x
    x = 332,864,933.02/25,387.03
  6. Step 6: Final answer
    x = 13,111.61

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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.