Home / 28,721.60-43,083.84-10,253.60

Finding the Fourth Proportional to 28,721.60, 43,083.84 and 10,253.60

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Solution

The fourth proportional to 28,721.60, 43,083.84 and 10,253.60 is: 15,380.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,721.60 : 43,083.84 = 10,253.60 : x
  2. Step 2: Convert to fraction form
    28,721.60/43,083.84 = 10,253.60/x
  3. Step 3: Cross multiply
    28,721.60x = 43,083.84 × 10,253.60
  4. Step 4: Simplify right side
    28,721.60x = 441,764,461.82
  5. Step 5: Solve for x
    x = 441,764,461.82/28,721.60
  6. Step 6: Final answer
    x = 15,380.91

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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.