Home / 25,428.62-38,144.60-8,790.26

Finding the Fourth Proportional to 25,428.62, 38,144.60 and 8,790.26

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Solution

The fourth proportional to 25,428.62, 38,144.60 and 8,790.26 is: 13,185.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,428.62 : 38,144.60 = 8,790.26 : x
  2. Step 2: Convert to fraction form
    25,428.62/38,144.60 = 8,790.26/x
  3. Step 3: Cross multiply
    25,428.62x = 38,144.60 × 8,790.26
  4. Step 4: Simplify right side
    25,428.62x = 335,300,782.85
  5. Step 5: Solve for x
    x = 335,300,782.85/25,428.62
  6. Step 6: Final answer
    x = 13,185.96

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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.