Home / 38,780.82-58,187.07-13,825.62

Finding the Fourth Proportional to 38,780.82, 58,187.07 and 13,825.62

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Solution

The fourth proportional to 38,780.82, 58,187.07 and 13,825.62 is: 20,744.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,780.82 : 58,187.07 = 13,825.62 : x
  2. Step 2: Convert to fraction form
    38,780.82/58,187.07 = 13,825.62/x
  3. Step 3: Cross multiply
    38,780.82x = 58,187.07 × 13,825.62
  4. Step 4: Simplify right side
    38,780.82x = 804,472,318.73
  5. Step 5: Solve for x
    x = 804,472,318.73/38,780.82
  6. Step 6: Final answer
    x = 20,744.08

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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.