Home / 25,010.40-34,512.90-13,677.78

Finding the Fourth Proportional to 25,010.40, 34,512.90 and 13,677.78

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Solution

The fourth proportional to 25,010.40, 34,512.90 and 13,677.78 is: 18,874.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,010.40 : 34,512.90 = 13,677.78 : x
  2. Step 2: Convert to fraction form
    25,010.40/34,512.90 = 13,677.78/x
  3. Step 3: Cross multiply
    25,010.40x = 34,512.90 × 13,677.78
  4. Step 4: Simplify right side
    25,010.40x = 472,059,853.36
  5. Step 5: Solve for x
    x = 472,059,853.36/25,010.40
  6. Step 6: Final answer
    x = 18,874.54

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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.