Home / 28,092.12-42,138.38-7,032.52

Finding the Fourth Proportional to 28,092.12, 42,138.38 and 7,032.52

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Solution

The fourth proportional to 28,092.12, 42,138.38 and 7,032.52 is: 10,548.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,092.12 : 42,138.38 = 7,032.52 : x
  2. Step 2: Convert to fraction form
    28,092.12/42,138.38 = 7,032.52/x
  3. Step 3: Cross multiply
    28,092.12x = 42,138.38 × 7,032.52
  4. Step 4: Simplify right side
    28,092.12x = 296,339,000.12
  5. Step 5: Solve for x
    x = 296,339,000.12/28,092.12
  6. Step 6: Final answer
    x = 10,548.83

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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.