Home / 25,938.11-38,912.85-8,409.71

Finding the Fourth Proportional to 25,938.11, 38,912.85 and 8,409.71

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Solution

The fourth proportional to 25,938.11, 38,912.85 and 8,409.71 is: 12,616.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,938.11 : 38,912.85 = 8,409.71 : x
  2. Step 2: Convert to fraction form
    25,938.11/38,912.85 = 8,409.71/x
  3. Step 3: Cross multiply
    25,938.11x = 38,912.85 × 8,409.71
  4. Step 4: Simplify right side
    25,938.11x = 327,245,783.77
  5. Step 5: Solve for x
    x = 327,245,783.77/25,938.11
  6. Step 6: Final answer
    x = 12,616.41

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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.