Home / 25,009.89-34,512.48-13,679.85

Finding the Fourth Proportional to 25,009.89, 34,512.48 and 13,679.85

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Solution

The fourth proportional to 25,009.89, 34,512.48 and 13,679.85 is: 18,877.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,009.89 : 34,512.48 = 13,679.85 : x
  2. Step 2: Convert to fraction form
    25,009.89/34,512.48 = 13,679.85/x
  3. Step 3: Cross multiply
    25,009.89x = 34,512.48 × 13,679.85
  4. Step 4: Simplify right side
    25,009.89x = 472,125,549.53
  5. Step 5: Solve for x
    x = 472,125,549.53/25,009.89
  6. Step 6: Final answer
    x = 18,877.55

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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.