Home / 40,835.36-61,171.03-18,618.18

Finding the Fourth Proportional to 40,835.36, 61,171.03 and 18,618.18

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Solution

The fourth proportional to 40,835.36, 61,171.03 and 18,618.18 is: 27,889.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,835.36 : 61,171.03 = 18,618.18 : x
  2. Step 2: Convert to fraction form
    40,835.36/61,171.03 = 18,618.18/x
  3. Step 3: Cross multiply
    40,835.36x = 61,171.03 × 18,618.18
  4. Step 4: Simplify right side
    40,835.36x = 1,138,892,994.66
  5. Step 5: Solve for x
    x = 1,138,892,994.66/40,835.36
  6. Step 6: Final answer
    x = 27,889.87

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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.