Home / 20,087.62-30,134.89-8,247.84

Finding the Fourth Proportional to 20,087.62, 30,134.89 and 8,247.84

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Solution

The fourth proportional to 20,087.62, 30,134.89 and 8,247.84 is: 12,373.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.62 : 30,134.89 = 8,247.84 : x
  2. Step 2: Convert to fraction form
    20,087.62/30,134.89 = 8,247.84/x
  3. Step 3: Cross multiply
    20,087.62x = 30,134.89 × 8,247.84
  4. Step 4: Simplify right side
    20,087.62x = 248,547,751.14
  5. Step 5: Solve for x
    x = 248,547,751.14/20,087.62
  6. Step 6: Final answer
    x = 12,373.18

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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.