Home / 25,111.85-34,654.41-13,781.43

Finding the Fourth Proportional to 25,111.85, 34,654.41 and 13,781.43

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Solution

The fourth proportional to 25,111.85, 34,654.41 and 13,781.43 is: 19,018.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,111.85 : 34,654.41 = 13,781.43 : x
  2. Step 2: Convert to fraction form
    25,111.85/34,654.41 = 13,781.43/x
  3. Step 3: Cross multiply
    25,111.85x = 34,654.41 × 13,781.43
  4. Step 4: Simplify right side
    25,111.85x = 477,587,325.61
  5. Step 5: Solve for x
    x = 477,587,325.61/25,111.85
  6. Step 6: Final answer
    x = 19,018.41

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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.