Home / 28,857.81-43,292.31-11,087.16

Finding the Fourth Proportional to 28,857.81, 43,292.31 and 11,087.16

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Solution

The fourth proportional to 28,857.81, 43,292.31 and 11,087.16 is: 16,632.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,857.81 : 43,292.31 = 11,087.16 : x
  2. Step 2: Convert to fraction form
    28,857.81/43,292.31 = 11,087.16/x
  3. Step 3: Cross multiply
    28,857.81x = 43,292.31 × 11,087.16
  4. Step 4: Simplify right side
    28,857.81x = 479,988,563.82
  5. Step 5: Solve for x
    x = 479,988,563.82/28,857.81
  6. Step 6: Final answer
    x = 16,632.88

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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.