Home / 28,758.62-43,135.86-9,042.81

Finding the Fourth Proportional to 28,758.62, 43,135.86 and 9,042.81

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Solution

The fourth proportional to 28,758.62, 43,135.86 and 9,042.81 is: 13,563.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758.62 : 43,135.86 = 9,042.81 : x
  2. Step 2: Convert to fraction form
    28,758.62/43,135.86 = 9,042.81/x
  3. Step 3: Cross multiply
    28,758.62x = 43,135.86 × 9,042.81
  4. Step 4: Simplify right side
    28,758.62x = 390,069,516.61
  5. Step 5: Solve for x
    x = 390,069,516.61/28,758.62
  6. Step 6: Final answer
    x = 13,563.57

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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.