Home / 25,528.90-38,293.36-7,998.80

Finding the Fourth Proportional to 25,528.90, 38,293.36 and 7,998.80

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Solution

The fourth proportional to 25,528.90, 38,293.36 and 7,998.80 is: 11,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,528.90 : 38,293.36 = 7,998.80 : x
  2. Step 2: Convert to fraction form
    25,528.90/38,293.36 = 7,998.80/x
  3. Step 3: Cross multiply
    25,528.90x = 38,293.36 × 7,998.80
  4. Step 4: Simplify right side
    25,528.90x = 306,300,927.97
  5. Step 5: Solve for x
    x = 306,300,927.97/25,528.90
  6. Step 6: Final answer
    x = 11,998.20

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Similar ratio
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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.