Home / 28,568.36-42,859.20-8,845.86

Finding the Fourth Proportional to 28,568.36, 42,859.20 and 8,845.86

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Solution

The fourth proportional to 28,568.36, 42,859.20 and 8,845.86 is: 13,270.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,568.36 : 42,859.20 = 8,845.86 : x
  2. Step 2: Convert to fraction form
    28,568.36/42,859.20 = 8,845.86/x
  3. Step 3: Cross multiply
    28,568.36x = 42,859.20 × 8,845.86
  4. Step 4: Simplify right side
    28,568.36x = 379,126,482.91
  5. Step 5: Solve for x
    x = 379,126,482.91/28,568.36
  6. Step 6: Final answer
    x = 13,270.85

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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.