Home / 40,991.36-61,494.05-18,806.64

Finding the Fourth Proportional to 40,991.36, 61,494.05 and 18,806.64

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Solution

The fourth proportional to 40,991.36, 61,494.05 and 18,806.64 is: 28,213.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,991.36 : 61,494.05 = 18,806.64 : x
  2. Step 2: Convert to fraction form
    40,991.36/61,494.05 = 18,806.64/x
  3. Step 3: Cross multiply
    40,991.36x = 61,494.05 × 18,806.64
  4. Step 4: Simplify right side
    40,991.36x = 1,156,496,460.49
  5. Step 5: Solve for x
    x = 1,156,496,460.49/40,991.36
  6. Step 6: Final answer
    x = 28,213.18

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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.