Home / 25,439.80-35,124.30-15,894.22

Finding the Fourth Proportional to 25,439.80, 35,124.30 and 15,894.22

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Solution

The fourth proportional to 25,439.80, 35,124.30 and 15,894.22 is: 21,944.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,439.80 : 35,124.30 = 15,894.22 : x
  2. Step 2: Convert to fraction form
    25,439.80/35,124.30 = 15,894.22/x
  3. Step 3: Cross multiply
    25,439.80x = 35,124.30 × 15,894.22
  4. Step 4: Simplify right side
    25,439.80x = 558,273,351.55
  5. Step 5: Solve for x
    x = 558,273,351.55/25,439.80
  6. Step 6: Final answer
    x = 21,944.88

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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.