Home / 25,017.75-34,524.63-13,687.38

Finding the Fourth Proportional to 25,017.75, 34,524.63 and 13,687.38

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Solution

The fourth proportional to 25,017.75, 34,524.63 and 13,687.38 is: 18,888.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,017.75 : 34,524.63 = 13,687.38 : x
  2. Step 2: Convert to fraction form
    25,017.75/34,524.63 = 13,687.38/x
  3. Step 3: Cross multiply
    25,017.75x = 34,524.63 × 13,687.38
  4. Step 4: Simplify right side
    25,017.75x = 472,551,730.17
  5. Step 5: Solve for x
    x = 472,551,730.17/25,017.75
  6. Step 6: Final answer
    x = 18,888.66

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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.