Home / 25,659.28-35,425.74-19,679.44

Finding the Fourth Proportional to 25,659.28, 35,425.74 and 19,679.44

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Solution

The fourth proportional to 25,659.28, 35,425.74 and 19,679.44 is: 27,169.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,659.28 : 35,425.74 = 19,679.44 : x
  2. Step 2: Convert to fraction form
    25,659.28/35,425.74 = 19,679.44/x
  3. Step 3: Cross multiply
    25,659.28x = 35,425.74 × 19,679.44
  4. Step 4: Simplify right side
    25,659.28x = 697,158,724.79
  5. Step 5: Solve for x
    x = 697,158,724.79/25,659.28
  6. Step 6: Final answer
    x = 27,169.85

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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.