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Finding the Fourth Proportional to 28,373, 39,155.46 and 15,797.48

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Solution

The fourth proportional to 28,373, 39,155.46 and 15,797.48 is: 21,800.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,373 : 39,155.46 = 15,797.48 : x
  2. Step 2: Convert to fraction form
    28,373/39,155.46 = 15,797.48/x
  3. Step 3: Cross multiply
    28,373x = 39,155.46 × 15,797.48
  4. Step 4: Simplify right side
    28,373x = 618,557,596.24
  5. Step 5: Solve for x
    x = 618,557,596.24/28,373
  6. Step 6: Final answer
    x = 21,800.92

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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.