Home / 30,099.60-45,176.74-20,245.82

Finding the Fourth Proportional to 30,099.60, 45,176.74 and 20,245.82

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Solution

The fourth proportional to 30,099.60, 45,176.74 and 20,245.82 is: 30,387.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,099.60 : 45,176.74 = 20,245.82 : x
  2. Step 2: Convert to fraction form
    30,099.60/45,176.74 = 20,245.82/x
  3. Step 3: Cross multiply
    30,099.60x = 45,176.74 × 20,245.82
  4. Step 4: Simplify right side
    30,099.60x = 914,639,869.73
  5. Step 5: Solve for x
    x = 914,639,869.73/30,099.60
  6. Step 6: Final answer
    x = 30,387.11

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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.