Home / 25,407.93-38,115.59-7,879.17

Finding the Fourth Proportional to 25,407.93, 38,115.59 and 7,879.17

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Solution

The fourth proportional to 25,407.93, 38,115.59 and 7,879.17 is: 11,819.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,407.93 : 38,115.59 = 7,879.17 : x
  2. Step 2: Convert to fraction form
    25,407.93/38,115.59 = 7,879.17/x
  3. Step 3: Cross multiply
    25,407.93x = 38,115.59 × 7,879.17
  4. Step 4: Simplify right side
    25,407.93x = 300,319,173.86
  5. Step 5: Solve for x
    x = 300,319,173.86/25,407.93
  6. Step 6: Final answer
    x = 11,819.90

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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.