Home / 25,580.46-38,378.31-13,109.25

Finding the Fourth Proportional to 25,580.46, 38,378.31 and 13,109.25

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Solution

The fourth proportional to 25,580.46, 38,378.31 and 13,109.25 is: 19,667.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,580.46 : 38,378.31 = 13,109.25 : x
  2. Step 2: Convert to fraction form
    25,580.46/38,378.31 = 13,109.25/x
  3. Step 3: Cross multiply
    25,580.46x = 38,378.31 × 13,109.25
  4. Step 4: Simplify right side
    25,580.46x = 503,110,860.37
  5. Step 5: Solve for x
    x = 503,110,860.37/25,580.46
  6. Step 6: Final answer
    x = 19,667.78

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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.