Home / 25,121.61-34,667.88-13,791.18

Finding the Fourth Proportional to 25,121.61, 34,667.88 and 13,791.18

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Solution

The fourth proportional to 25,121.61, 34,667.88 and 13,791.18 is: 19,031.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,121.61 : 34,667.88 = 13,791.18 : x
  2. Step 2: Convert to fraction form
    25,121.61/34,667.88 = 13,791.18/x
  3. Step 3: Cross multiply
    25,121.61x = 34,667.88 × 13,791.18
  4. Step 4: Simplify right side
    25,121.61x = 478,110,973.30
  5. Step 5: Solve for x
    x = 478,110,973.30/25,121.61
  6. Step 6: Final answer
    x = 19,031.86

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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.