Home / 25,760.71-38,577.70-12,570.55

Finding the Fourth Proportional to 25,760.71, 38,577.70 and 12,570.55

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Solution

The fourth proportional to 25,760.71, 38,577.70 and 12,570.55 is: 18,824.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,760.71 : 38,577.70 = 12,570.55 : x
  2. Step 2: Convert to fraction form
    25,760.71/38,577.70 = 12,570.55/x
  3. Step 3: Cross multiply
    25,760.71x = 38,577.70 × 12,570.55
  4. Step 4: Simplify right side
    25,760.71x = 484,942,906.74
  5. Step 5: Solve for x
    x = 484,942,906.74/25,760.71
  6. Step 6: Final answer
    x = 18,824.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.