Home / 25,760.16-38,649.96-9,119.52

Finding the Fourth Proportional to 25,760.16, 38,649.96 and 9,119.52

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Solution

The fourth proportional to 25,760.16, 38,649.96 and 9,119.52 is: 13,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,760.16 : 38,649.96 = 9,119.52 : x
  2. Step 2: Convert to fraction form
    25,760.16/38,649.96 = 9,119.52/x
  3. Step 3: Cross multiply
    25,760.16x = 38,649.96 × 9,119.52
  4. Step 4: Simplify right side
    25,760.16x = 352,469,083.22
  5. Step 5: Solve for x
    x = 352,469,083.22/25,760.16
  6. Step 6: Final answer
    x = 13,682.72

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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.