Home / 28,947.76-43,426.84-10,238.64

Finding the Fourth Proportional to 28,947.76, 43,426.84 and 10,238.64

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Solution

The fourth proportional to 28,947.76, 43,426.84 and 10,238.64 is: 15,359.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,947.76 : 43,426.84 = 10,238.64 : x
  2. Step 2: Convert to fraction form
    28,947.76/43,426.84 = 10,238.64/x
  3. Step 3: Cross multiply
    28,947.76x = 43,426.84 × 10,238.64
  4. Step 4: Simplify right side
    28,947.76x = 444,631,781.10
  5. Step 5: Solve for x
    x = 444,631,781.10/28,947.76
  6. Step 6: Final answer
    x = 15,359.80

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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.