Home / 20,415.56-30,623.33-5,624.62

Finding the Fourth Proportional to 20,415.56, 30,623.33 and 5,624.62

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Solution

The fourth proportional to 20,415.56, 30,623.33 and 5,624.62 is: 8,436.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,415.56 : 30,623.33 = 5,624.62 : x
  2. Step 2: Convert to fraction form
    20,415.56/30,623.33 = 5,624.62/x
  3. Step 3: Cross multiply
    20,415.56x = 30,623.33 × 5,624.62
  4. Step 4: Simplify right side
    20,415.56x = 172,244,531.89
  5. Step 5: Solve for x
    x = 172,244,531.89/20,415.56
  6. Step 6: Final answer
    x = 8,436.93

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Similar ratio
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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.