Home / 28,037.45-42,045.69-11,391.87

Finding the Fourth Proportional to 28,037.45, 42,045.69 and 11,391.87

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Solution

The fourth proportional to 28,037.45, 42,045.69 and 11,391.87 is: 17,083.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,037.45 : 42,045.69 = 11,391.87 : x
  2. Step 2: Convert to fraction form
    28,037.45/42,045.69 = 11,391.87/x
  3. Step 3: Cross multiply
    28,037.45x = 42,045.69 × 11,391.87
  4. Step 4: Simplify right side
    28,037.45x = 478,979,034.54
  5. Step 5: Solve for x
    x = 478,979,034.54/28,037.45
  6. Step 6: Final answer
    x = 17,083.54

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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.