Home / 25,487.90-38,231.85-7,959.23

Finding the Fourth Proportional to 25,487.90, 38,231.85 and 7,959.23

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Solution

The fourth proportional to 25,487.90, 38,231.85 and 7,959.23 is: 11,938.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,487.90 : 38,231.85 = 7,959.23 : x
  2. Step 2: Convert to fraction form
    25,487.90/38,231.85 = 7,959.23/x
  3. Step 3: Cross multiply
    25,487.90x = 38,231.85 × 7,959.23
  4. Step 4: Simplify right side
    25,487.90x = 304,296,183.06
  5. Step 5: Solve for x
    x = 304,296,183.06/25,487.90
  6. Step 6: Final answer
    x = 11,938.85

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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.