Home / 25,938.96-38,912.04-8,403.12

Finding the Fourth Proportional to 25,938.96, 38,912.04 and 8,403.12

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Solution

The fourth proportional to 25,938.96, 38,912.04 and 8,403.12 is: 12,605.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,938.96 : 38,912.04 = 8,403.12 : x
  2. Step 2: Convert to fraction form
    25,938.96/38,912.04 = 8,403.12/x
  3. Step 3: Cross multiply
    25,938.96x = 38,912.04 × 8,403.12
  4. Step 4: Simplify right side
    25,938.96x = 326,982,541.56
  5. Step 5: Solve for x
    x = 326,982,541.56/25,938.96
  6. Step 6: Final answer
    x = 12,605.85

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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.