Home / 25,172.12-34,728.88-15,608.57

Finding the Fourth Proportional to 25,172.12, 34,728.88 and 15,608.57

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Solution

The fourth proportional to 25,172.12, 34,728.88 and 15,608.57 is: 21,534.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,172.12 : 34,728.88 = 15,608.57 : x
  2. Step 2: Convert to fraction form
    25,172.12/34,728.88 = 15,608.57/x
  3. Step 3: Cross multiply
    25,172.12x = 34,728.88 × 15,608.57
  4. Step 4: Simplify right side
    25,172.12x = 542,067,941.84
  5. Step 5: Solve for x
    x = 542,067,941.84/25,172.12
  6. Step 6: Final answer
    x = 21,534.46

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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.