Home / 25,938.07-38,912.57-8,406.53

Finding the Fourth Proportional to 25,938.07, 38,912.57 and 8,406.53

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Solution

The fourth proportional to 25,938.07, 38,912.57 and 8,406.53 is: 12,611.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,938.07 : 38,912.57 = 8,406.53 : x
  2. Step 2: Convert to fraction form
    25,938.07/38,912.57 = 8,406.53/x
  3. Step 3: Cross multiply
    25,938.07x = 38,912.57 × 8,406.53
  4. Step 4: Simplify right side
    25,938.07x = 327,119,805.38
  5. Step 5: Solve for x
    x = 327,119,805.38/25,938.07
  6. Step 6: Final answer
    x = 12,611.57

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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.