Home / 28,010.57-42,028.61-10,481.76

Finding the Fourth Proportional to 28,010.57, 42,028.61 and 10,481.76

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Solution

The fourth proportional to 28,010.57, 42,028.61 and 10,481.76 is: 15,727.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010.57 : 42,028.61 = 10,481.76 : x
  2. Step 2: Convert to fraction form
    28,010.57/42,028.61 = 10,481.76/x
  3. Step 3: Cross multiply
    28,010.57x = 42,028.61 × 10,481.76
  4. Step 4: Simplify right side
    28,010.57x = 440,533,750.74
  5. Step 5: Solve for x
    x = 440,533,750.74/28,010.57
  6. Step 6: Final answer
    x = 15,727.41

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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.