Home / 29,170.65-43,719.08-18,636.60

Finding the Fourth Proportional to 29,170.65, 43,719.08 and 18,636.60

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Solution

The fourth proportional to 29,170.65, 43,719.08 and 18,636.60 is: 27,931.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,170.65 : 43,719.08 = 18,636.60 : x
  2. Step 2: Convert to fraction form
    29,170.65/43,719.08 = 18,636.60/x
  3. Step 3: Cross multiply
    29,170.65x = 43,719.08 × 18,636.60
  4. Step 4: Simplify right side
    29,170.65x = 814,775,077.09
  5. Step 5: Solve for x
    x = 814,775,077.09/29,170.65
  6. Step 6: Final answer
    x = 27,931.33

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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.