Home / 28,442.52-39,251.52-15,867

Finding the Fourth Proportional to 28,442.52, 39,251.52 and 15,867

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Solution

The fourth proportional to 28,442.52, 39,251.52 and 15,867 is: 21,896.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442.52 : 39,251.52 = 15,867 : x
  2. Step 2: Convert to fraction form
    28,442.52/39,251.52 = 15,867/x
  3. Step 3: Cross multiply
    28,442.52x = 39,251.52 × 15,867
  4. Step 4: Simplify right side
    28,442.52x = 622,803,867.84
  5. Step 5: Solve for x
    x = 622,803,867.84/28,442.52
  6. Step 6: Final answer
    x = 21,896.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.