Home / 28,500.12-42,755.04-8,775

Finding the Fourth Proportional to 28,500.12, 42,755.04 and 8,775

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Solution

The fourth proportional to 28,500.12, 42,755.04 and 8,775 is: 13,164.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,500.12 : 42,755.04 = 8,775 : x
  2. Step 2: Convert to fraction form
    28,500.12/42,755.04 = 8,775/x
  3. Step 3: Cross multiply
    28,500.12x = 42,755.04 × 8,775
  4. Step 4: Simplify right side
    28,500.12x = 375,175,476
  5. Step 5: Solve for x
    x = 375,175,476/28,500.12
  6. Step 6: Final answer
    x = 13,164.00

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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.