Home / 20,416.56-30,624.83-5,625.62

Finding the Fourth Proportional to 20,416.56, 30,624.83 and 5,625.62

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Solution

The fourth proportional to 20,416.56, 30,624.83 and 5,625.62 is: 8,438.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.56 : 30,624.83 = 5,625.62 : x
  2. Step 2: Convert to fraction form
    20,416.56/30,624.83 = 5,625.62/x
  3. Step 3: Cross multiply
    20,416.56x = 30,624.83 × 5,625.62
  4. Step 4: Simplify right side
    20,416.56x = 172,283,656.14
  5. Step 5: Solve for x
    x = 172,283,656.14/20,416.56
  6. Step 6: Final answer
    x = 8,438.43

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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.