Home / 25,011.90-34,515.01-13,679.14

Finding the Fourth Proportional to 25,011.90, 34,515.01 and 13,679.14

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Solution

The fourth proportional to 25,011.90, 34,515.01 and 13,679.14 is: 18,876.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,011.90 : 34,515.01 = 13,679.14 : x
  2. Step 2: Convert to fraction form
    25,011.90/34,515.01 = 13,679.14/x
  3. Step 3: Cross multiply
    25,011.90x = 34,515.01 × 13,679.14
  4. Step 4: Simplify right side
    25,011.90x = 472,135,653.89
  5. Step 5: Solve for x
    x = 472,135,653.89/25,011.90
  6. Step 6: Final answer
    x = 18,876.44

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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.