Home / 25,981.44-38,885.76-20,751.36

Finding the Fourth Proportional to 25,981.44, 38,885.76 and 20,751.36

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Solution

The fourth proportional to 25,981.44, 38,885.76 and 20,751.36 is: 31,058.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,981.44 : 38,885.76 = 20,751.36 : x
  2. Step 2: Convert to fraction form
    25,981.44/38,885.76 = 20,751.36/x
  3. Step 3: Cross multiply
    25,981.44x = 38,885.76 × 20,751.36
  4. Step 4: Simplify right side
    25,981.44x = 806,932,404.63
  5. Step 5: Solve for x
    x = 806,932,404.63/25,981.44
  6. Step 6: Final answer
    x = 31,058.03

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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.