Home / 28,974.40-43,429.20-16,500.40

Finding the Fourth Proportional to 28,974.40, 43,429.20 and 16,500.40

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Solution

The fourth proportional to 28,974.40, 43,429.20 and 16,500.40 is: 24,732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,974.40 : 43,429.20 = 16,500.40 : x
  2. Step 2: Convert to fraction form
    28,974.40/43,429.20 = 16,500.40/x
  3. Step 3: Cross multiply
    28,974.40x = 43,429.20 × 16,500.40
  4. Step 4: Simplify right side
    28,974.40x = 716,599,171.68
  5. Step 5: Solve for x
    x = 716,599,171.68/28,974.40
  6. Step 6: Final answer
    x = 24,732.15

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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.