Home / 25,418.18-38,116.47-13,728.26

Finding the Fourth Proportional to 25,418.18, 38,116.47 and 13,728.26

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Solution

The fourth proportional to 25,418.18, 38,116.47 and 13,728.26 is: 20,586.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,418.18 : 38,116.47 = 13,728.26 : x
  2. Step 2: Convert to fraction form
    25,418.18/38,116.47 = 13,728.26/x
  3. Step 3: Cross multiply
    25,418.18x = 38,116.47 × 13,728.26
  4. Step 4: Simplify right side
    25,418.18x = 523,272,810.44
  5. Step 5: Solve for x
    x = 523,272,810.44/25,418.18
  6. Step 6: Final answer
    x = 20,586.56

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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.