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Finding the Fourth Proportional to 28,097.92, 42,134.40 and 14,947.52

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Solution

The fourth proportional to 28,097.92, 42,134.40 and 14,947.52 is: 22,414.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,097.92 : 42,134.40 = 14,947.52 : x
  2. Step 2: Convert to fraction form
    28,097.92/42,134.40 = 14,947.52/x
  3. Step 3: Cross multiply
    28,097.92x = 42,134.40 × 14,947.52
  4. Step 4: Simplify right side
    28,097.92x = 629,804,786.69
  5. Step 5: Solve for x
    x = 629,804,786.69/28,097.92
  6. Step 6: Final answer
    x = 22,414.64

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1.5x scale

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.