Home / 43,013.22-64,519.71-11,426.45

Finding the Fourth Proportional to 43,013.22, 64,519.71 and 11,426.45

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Solution

The fourth proportional to 43,013.22, 64,519.71 and 11,426.45 is: 17,139.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,013.22 : 64,519.71 = 11,426.45 : x
  2. Step 2: Convert to fraction form
    43,013.22/64,519.71 = 11,426.45/x
  3. Step 3: Cross multiply
    43,013.22x = 64,519.71 × 11,426.45
  4. Step 4: Simplify right side
    43,013.22x = 737,231,240.33
  5. Step 5: Solve for x
    x = 737,231,240.33/43,013.22
  6. Step 6: Final answer
    x = 17,139.64

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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.