Home / 28,083.62-42,089.04-11,424.32

Finding the Fourth Proportional to 28,083.62, 42,089.04 and 11,424.32

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Solution

The fourth proportional to 28,083.62, 42,089.04 and 11,424.32 is: 17,121.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.62 : 42,089.04 = 11,424.32 : x
  2. Step 2: Convert to fraction form
    28,083.62/42,089.04 = 11,424.32/x
  3. Step 3: Cross multiply
    28,083.62x = 42,089.04 × 11,424.32
  4. Step 4: Simplify right side
    28,083.62x = 480,838,661.45
  5. Step 5: Solve for x
    x = 480,838,661.45/28,083.62
  6. Step 6: Final answer
    x = 17,121.68

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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.