Home / 28,719.56-43,079.04-11,201.69

Finding the Fourth Proportional to 28,719.56, 43,079.04 and 11,201.69

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Solution

The fourth proportional to 28,719.56, 43,079.04 and 11,201.69 is: 16,802.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,719.56 : 43,079.04 = 11,201.69 : x
  2. Step 2: Convert to fraction form
    28,719.56/43,079.04 = 11,201.69/x
  3. Step 3: Cross multiply
    28,719.56x = 43,079.04 × 11,201.69
  4. Step 4: Simplify right side
    28,719.56x = 482,558,159.28
  5. Step 5: Solve for x
    x = 482,558,159.28/28,719.56
  6. Step 6: Final answer
    x = 16,802.42

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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.