Home / 25,144.68-37,713.48-13,920.78

Finding the Fourth Proportional to 25,144.68, 37,713.48 and 13,920.78

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Solution

The fourth proportional to 25,144.68, 37,713.48 and 13,920.78 is: 20,879.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,144.68 : 37,713.48 = 13,920.78 : x
  2. Step 2: Convert to fraction form
    25,144.68/37,713.48 = 13,920.78/x
  3. Step 3: Cross multiply
    25,144.68x = 37,713.48 × 13,920.78
  4. Step 4: Simplify right side
    25,144.68x = 525,001,058.11
  5. Step 5: Solve for x
    x = 525,001,058.11/25,144.68
  6. Step 6: Final answer
    x = 20,879.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.