Home / 43,421.94-65,141.55-18,461.79

Finding the Fourth Proportional to 43,421.94, 65,141.55 and 18,461.79

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Solution

The fourth proportional to 43,421.94, 65,141.55 and 18,461.79 is: 27,696.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,421.94 : 65,141.55 = 18,461.79 : x
  2. Step 2: Convert to fraction form
    43,421.94/65,141.55 = 18,461.79/x
  3. Step 3: Cross multiply
    43,421.94x = 65,141.55 × 18,461.79
  4. Step 4: Simplify right side
    43,421.94x = 1,202,629,616.37
  5. Step 5: Solve for x
    x = 1,202,629,616.37/43,421.94
  6. Step 6: Final answer
    x = 27,696.36

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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.