Home / 28,853.05-43,275.23-9,129.04

Finding the Fourth Proportional to 28,853.05, 43,275.23 and 9,129.04

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Solution

The fourth proportional to 28,853.05, 43,275.23 and 9,129.04 is: 13,692.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,853.05 : 43,275.23 = 9,129.04 : x
  2. Step 2: Convert to fraction form
    28,853.05/43,275.23 = 9,129.04/x
  3. Step 3: Cross multiply
    28,853.05x = 43,275.23 × 9,129.04
  4. Step 4: Simplify right side
    28,853.05x = 395,061,151.85
  5. Step 5: Solve for x
    x = 395,061,151.85/28,853.05
  6. Step 6: Final answer
    x = 13,692.18

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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.