Home / 43,519.61-65,217.78-18,534.48

Finding the Fourth Proportional to 43,519.61, 65,217.78 and 18,534.48

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Solution

The fourth proportional to 43,519.61, 65,217.78 and 18,534.48 is: 27,775.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,519.61 : 65,217.78 = 18,534.48 : x
  2. Step 2: Convert to fraction form
    43,519.61/65,217.78 = 18,534.48/x
  3. Step 3: Cross multiply
    43,519.61x = 65,217.78 × 18,534.48
  4. Step 4: Simplify right side
    43,519.61x = 1,208,777,639.05
  5. Step 5: Solve for x
    x = 1,208,777,639.05/43,519.61
  6. Step 6: Final answer
    x = 27,775.47

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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.