Home / 25,228.40-37,865.92-12,757.20

Finding the Fourth Proportional to 25,228.40, 37,865.92 and 12,757.20

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Solution

The fourth proportional to 25,228.40, 37,865.92 and 12,757.20 is: 19,147.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,228.40 : 37,865.92 = 12,757.20 : x
  2. Step 2: Convert to fraction form
    25,228.40/37,865.92 = 12,757.20/x
  3. Step 3: Cross multiply
    25,228.40x = 37,865.92 × 12,757.20
  4. Step 4: Simplify right side
    25,228.40x = 483,063,114.62
  5. Step 5: Solve for x
    x = 483,063,114.62/25,228.40
  6. Step 6: Final answer
    x = 19,147.59

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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.