Home / 25,135.25-34,709.17-18,750.75

Finding the Fourth Proportional to 25,135.25, 34,709.17 and 18,750.75

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Solution

The fourth proportional to 25,135.25, 34,709.17 and 18,750.75 is: 25,892.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,135.25 : 34,709.17 = 18,750.75 : x
  2. Step 2: Convert to fraction form
    25,135.25/34,709.17 = 18,750.75/x
  3. Step 3: Cross multiply
    25,135.25x = 34,709.17 × 18,750.75
  4. Step 4: Simplify right side
    25,135.25x = 650,823,124.28
  5. Step 5: Solve for x
    x = 650,823,124.28/25,135.25
  6. Step 6: Final answer
    x = 25,892.85

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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.