Home / 25,274.88-34,861.92-19,961.28

Finding the Fourth Proportional to 25,274.88, 34,861.92 and 19,961.28

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Solution

The fourth proportional to 25,274.88, 34,861.92 and 19,961.28 is: 27,532.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,274.88 : 34,861.92 = 19,961.28 : x
  2. Step 2: Convert to fraction form
    25,274.88/34,861.92 = 19,961.28/x
  3. Step 3: Cross multiply
    25,274.88x = 34,861.92 × 19,961.28
  4. Step 4: Simplify right side
    25,274.88x = 695,888,546.46
  5. Step 5: Solve for x
    x = 695,888,546.46/25,274.88
  6. Step 6: Final answer
    x = 27,532.81

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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.