Home / 20,081.48-30,098.32-15,134.80

Finding the Fourth Proportional to 20,081.48, 30,098.32 and 15,134.80

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Solution

The fourth proportional to 20,081.48, 30,098.32 and 15,134.80 is: 22,684.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.48 : 30,098.32 = 15,134.80 : x
  2. Step 2: Convert to fraction form
    20,081.48/30,098.32 = 15,134.80/x
  3. Step 3: Cross multiply
    20,081.48x = 30,098.32 × 15,134.80
  4. Step 4: Simplify right side
    20,081.48x = 455,532,053.54
  5. Step 5: Solve for x
    x = 455,532,053.54/20,081.48
  6. Step 6: Final answer
    x = 22,684.19

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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.