Home / 18,185.60-27,278.42-5,038

Finding the Fourth Proportional to 18,185.60, 27,278.42 and 5,038

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Solution

The fourth proportional to 18,185.60, 27,278.42 and 5,038 is: 7,557.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.60 : 27,278.42 = 5,038 : x
  2. Step 2: Convert to fraction form
    18,185.60/27,278.42 = 5,038/x
  3. Step 3: Cross multiply
    18,185.60x = 27,278.42 × 5,038
  4. Step 4: Simplify right side
    18,185.60x = 137,428,679.96
  5. Step 5: Solve for x
    x = 137,428,679.96/18,185.60
  6. Step 6: Final answer
    x = 7,557.01

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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.