Home / 25,948.95-38,923.41-8,418.78

Finding the Fourth Proportional to 25,948.95, 38,923.41 and 8,418.78

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Solution

The fourth proportional to 25,948.95, 38,923.41 and 8,418.78 is: 12,628.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,948.95 : 38,923.41 = 8,418.78 : x
  2. Step 2: Convert to fraction form
    25,948.95/38,923.41 = 8,418.78/x
  3. Step 3: Cross multiply
    25,948.95x = 38,923.41 × 8,418.78
  4. Step 4: Simplify right side
    25,948.95x = 327,687,625.64
  5. Step 5: Solve for x
    x = 327,687,625.64/25,948.95
  6. Step 6: Final answer
    x = 12,628.17

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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.