Home / 20,225.75-30,341.25-7,081.88

Finding the Fourth Proportional to 20,225.75, 30,341.25 and 7,081.88

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Solution

The fourth proportional to 20,225.75, 30,341.25 and 7,081.88 is: 10,623.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.75 : 30,341.25 = 7,081.88 : x
  2. Step 2: Convert to fraction form
    20,225.75/30,341.25 = 7,081.88/x
  3. Step 3: Cross multiply
    20,225.75x = 30,341.25 × 7,081.88
  4. Step 4: Simplify right side
    20,225.75x = 214,872,939.84
  5. Step 5: Solve for x
    x = 214,872,939.84/20,225.75
  6. Step 6: Final answer
    x = 10,623.73

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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.