Home / 28,734.64-43,105.05-12,098.41

Finding the Fourth Proportional to 28,734.64, 43,105.05 and 12,098.41

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Solution

The fourth proportional to 28,734.64, 43,105.05 and 12,098.41 is: 18,148.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,734.64 : 43,105.05 = 12,098.41 : x
  2. Step 2: Convert to fraction form
    28,734.64/43,105.05 = 12,098.41/x
  3. Step 3: Cross multiply
    28,734.64x = 43,105.05 × 12,098.41
  4. Step 4: Simplify right side
    28,734.64x = 521,502,460.21
  5. Step 5: Solve for x
    x = 521,502,460.21/28,734.64
  6. Step 6: Final answer
    x = 18,148.91

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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.