Home / 25,677.39-38,453.16-21,207.69

Finding the Fourth Proportional to 25,677.39, 38,453.16 and 21,207.69

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Solution

The fourth proportional to 25,677.39, 38,453.16 and 21,207.69 is: 31,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,677.39 : 38,453.16 = 21,207.69 : x
  2. Step 2: Convert to fraction form
    25,677.39/38,453.16 = 21,207.69/x
  3. Step 3: Cross multiply
    25,677.39x = 38,453.16 × 21,207.69
  4. Step 4: Simplify right side
    25,677.39x = 815,502,696.80
  5. Step 5: Solve for x
    x = 815,502,696.80/25,677.39
  6. Step 6: Final answer
    x = 31,759.56

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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.