Home / 28,253.36-42,383.76-10,481.60

Finding the Fourth Proportional to 28,253.36, 42,383.76 and 10,481.60

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Solution

The fourth proportional to 28,253.36, 42,383.76 and 10,481.60 is: 15,723.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,253.36 : 42,383.76 = 10,481.60 : x
  2. Step 2: Convert to fraction form
    28,253.36/42,383.76 = 10,481.60/x
  3. Step 3: Cross multiply
    28,253.36x = 42,383.76 × 10,481.60
  4. Step 4: Simplify right side
    28,253.36x = 444,249,618.82
  5. Step 5: Solve for x
    x = 444,249,618.82/28,253.36
  6. Step 6: Final answer
    x = 15,723.78

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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.