Home / 25,757.98-38,642.52-7,988.28

Finding the Fourth Proportional to 25,757.98, 38,642.52 and 7,988.28

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Solution

The fourth proportional to 25,757.98, 38,642.52 and 7,988.28 is: 11,984.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,757.98 : 38,642.52 = 7,988.28 : x
  2. Step 2: Convert to fraction form
    25,757.98/38,642.52 = 7,988.28/x
  3. Step 3: Cross multiply
    25,757.98x = 38,642.52 × 7,988.28
  4. Step 4: Simplify right side
    25,757.98x = 308,687,434.55
  5. Step 5: Solve for x
    x = 308,687,434.55/25,757.98
  6. Step 6: Final answer
    x = 11,984.15

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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.