Home / 25,187.38-34,759.21-13,857.18

Finding the Fourth Proportional to 25,187.38, 34,759.21 and 13,857.18

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Solution

The fourth proportional to 25,187.38, 34,759.21 and 13,857.18 is: 19,123.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,187.38 : 34,759.21 = 13,857.18 : x
  2. Step 2: Convert to fraction form
    25,187.38/34,759.21 = 13,857.18/x
  3. Step 3: Cross multiply
    25,187.38x = 34,759.21 × 13,857.18
  4. Step 4: Simplify right side
    25,187.38x = 481,664,629.63
  5. Step 5: Solve for x
    x = 481,664,629.63/25,187.38
  6. Step 6: Final answer
    x = 19,123.25

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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.