Home / 25,879.85-38,817.61-7,160.12

Finding the Fourth Proportional to 25,879.85, 38,817.61 and 7,160.12

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Solution

The fourth proportional to 25,879.85, 38,817.61 and 7,160.12 is: 10,739.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,879.85 : 38,817.61 = 7,160.12 : x
  2. Step 2: Convert to fraction form
    25,879.85/38,817.61 = 7,160.12/x
  3. Step 3: Cross multiply
    25,879.85x = 38,817.61 × 7,160.12
  4. Step 4: Simplify right side
    25,879.85x = 277,938,679.29
  5. Step 5: Solve for x
    x = 277,938,679.29/25,879.85
  6. Step 6: Final answer
    x = 10,739.58

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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.