Home / 25,857.18-38,780.82-7,132.56

Finding the Fourth Proportional to 25,857.18, 38,780.82 and 7,132.56

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Solution

The fourth proportional to 25,857.18, 38,780.82 and 7,132.56 is: 10,697.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,857.18 : 38,780.82 = 7,132.56 : x
  2. Step 2: Convert to fraction form
    25,857.18/38,780.82 = 7,132.56/x
  3. Step 3: Cross multiply
    25,857.18x = 38,780.82 × 7,132.56
  4. Step 4: Simplify right side
    25,857.18x = 276,606,525.50
  5. Step 5: Solve for x
    x = 276,606,525.50/25,857.18
  6. Step 6: Final answer
    x = 10,697.47

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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.