Home / 25,728.57-35,498.79-15,116.13

Finding the Fourth Proportional to 25,728.57, 35,498.79 and 15,116.13

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Solution

The fourth proportional to 25,728.57, 35,498.79 and 15,116.13 is: 20,856.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,728.57 : 35,498.79 = 15,116.13 : x
  2. Step 2: Convert to fraction form
    25,728.57/35,498.79 = 15,116.13/x
  3. Step 3: Cross multiply
    25,728.57x = 35,498.79 × 15,116.13
  4. Step 4: Simplify right side
    25,728.57x = 536,604,324.48
  5. Step 5: Solve for x
    x = 536,604,324.48/25,728.57
  6. Step 6: Final answer
    x = 20,856.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.