Home / 28,083.69-42,089.16-11,424.24

Finding the Fourth Proportional to 28,083.69, 42,089.16 and 11,424.24

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Solution

The fourth proportional to 28,083.69, 42,089.16 and 11,424.24 is: 17,121.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.69 : 42,089.16 = 11,424.24 : x
  2. Step 2: Convert to fraction form
    28,083.69/42,089.16 = 11,424.24/x
  3. Step 3: Cross multiply
    28,083.69x = 42,089.16 × 11,424.24
  4. Step 4: Simplify right side
    28,083.69x = 480,836,665.24
  5. Step 5: Solve for x
    x = 480,836,665.24/28,083.69
  6. Step 6: Final answer
    x = 17,121.56

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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.