Home / 28,531.62-42,801.53-8,811.86

Finding the Fourth Proportional to 28,531.62, 42,801.53 and 8,811.86

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Solution

The fourth proportional to 28,531.62, 42,801.53 and 8,811.86 is: 13,219.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531.62 : 42,801.53 = 8,811.86 : x
  2. Step 2: Convert to fraction form
    28,531.62/42,801.53 = 8,811.86/x
  3. Step 3: Cross multiply
    28,531.62x = 42,801.53 × 8,811.86
  4. Step 4: Simplify right side
    28,531.62x = 377,160,832.08
  5. Step 5: Solve for x
    x = 377,160,832.08/28,531.62
  6. Step 6: Final answer
    x = 13,219.05

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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.