Home / 25,867.28-35,696.84-15,119.55

Finding the Fourth Proportional to 25,867.28, 35,696.84 and 15,119.55

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Solution

The fourth proportional to 25,867.28, 35,696.84 and 15,119.55 is: 20,864.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,867.28 : 35,696.84 = 15,119.55 : x
  2. Step 2: Convert to fraction form
    25,867.28/35,696.84 = 15,119.55/x
  3. Step 3: Cross multiply
    25,867.28x = 35,696.84 × 15,119.55
  4. Step 4: Simplify right side
    25,867.28x = 539,720,081.62
  5. Step 5: Solve for x
    x = 539,720,081.62/25,867.28
  6. Step 6: Final answer
    x = 20,864.97

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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.