Home / 25,549.90-38,315.29-8,905.66

Finding the Fourth Proportional to 25,549.90, 38,315.29 and 8,905.66

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Solution

The fourth proportional to 25,549.90, 38,315.29 and 8,905.66 is: 13,355.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,549.90 : 38,315.29 = 8,905.66 : x
  2. Step 2: Convert to fraction form
    25,549.90/38,315.29 = 8,905.66/x
  3. Step 3: Cross multiply
    25,549.90x = 38,315.29 × 8,905.66
  4. Step 4: Simplify right side
    25,549.90x = 341,222,945.54
  5. Step 5: Solve for x
    x = 341,222,945.54/25,549.90
  6. Step 6: Final answer
    x = 13,355.16

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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.