Home / 25,764.89-38,661.71-13,918.43

Finding the Fourth Proportional to 25,764.89, 38,661.71 and 13,918.43

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Solution

The fourth proportional to 25,764.89, 38,661.71 and 13,918.43 is: 20,885.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,764.89 : 38,661.71 = 13,918.43 : x
  2. Step 2: Convert to fraction form
    25,764.89/38,661.71 = 13,918.43/x
  3. Step 3: Cross multiply
    25,764.89x = 38,661.71 × 13,918.43
  4. Step 4: Simplify right side
    25,764.89x = 538,110,331.38
  5. Step 5: Solve for x
    x = 538,110,331.38/25,764.89
  6. Step 6: Final answer
    x = 20,885.42

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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.