Home / 25,758.78-38,652.53-13,912.31

Finding the Fourth Proportional to 25,758.78, 38,652.53 and 13,912.31

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Solution

The fourth proportional to 25,758.78, 38,652.53 and 13,912.31 is: 20,876.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,758.78 : 38,652.53 = 13,912.31 : x
  2. Step 2: Convert to fraction form
    25,758.78/38,652.53 = 13,912.31/x
  3. Step 3: Cross multiply
    25,758.78x = 38,652.53 × 13,912.31
  4. Step 4: Simplify right side
    25,758.78x = 537,745,847.99
  5. Step 5: Solve for x
    x = 537,745,847.99/25,758.78
  6. Step 6: Final answer
    x = 20,876.21

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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.