Home / 28,746.18-43,119.27-12,105.86

Finding the Fourth Proportional to 28,746.18, 43,119.27 and 12,105.86

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Solution

The fourth proportional to 28,746.18, 43,119.27 and 12,105.86 is: 18,158.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746.18 : 43,119.27 = 12,105.86 : x
  2. Step 2: Convert to fraction form
    28,746.18/43,119.27 = 12,105.86/x
  3. Step 3: Cross multiply
    28,746.18x = 43,119.27 × 12,105.86
  4. Step 4: Simplify right side
    28,746.18x = 521,995,630.33
  5. Step 5: Solve for x
    x = 521,995,630.33/28,746.18
  6. Step 6: Final answer
    x = 18,158.78

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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.