Home / 25,659.54-35,426.34-19,679.70

Finding the Fourth Proportional to 25,659.54, 35,426.34 and 19,679.70

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Solution

The fourth proportional to 25,659.54, 35,426.34 and 19,679.70 is: 27,170.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,659.54 : 35,426.34 = 19,679.70 : x
  2. Step 2: Convert to fraction form
    25,659.54/35,426.34 = 19,679.70/x
  3. Step 3: Cross multiply
    25,659.54x = 35,426.34 × 19,679.70
  4. Step 4: Simplify right side
    25,659.54x = 697,179,743.30
  5. Step 5: Solve for x
    x = 697,179,743.30/25,659.54
  6. Step 6: Final answer
    x = 27,170.39

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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.