Home / 43,021.31-64,531.83-11,434.55

Finding the Fourth Proportional to 43,021.31, 64,531.83 and 11,434.55

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Solution

The fourth proportional to 43,021.31, 64,531.83 and 11,434.55 is: 17,151.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,021.31 : 64,531.83 = 11,434.55 : x
  2. Step 2: Convert to fraction form
    43,021.31/64,531.83 = 11,434.55/x
  3. Step 3: Cross multiply
    43,021.31x = 64,531.83 × 11,434.55
  4. Step 4: Simplify right side
    43,021.31x = 737,892,313.18
  5. Step 5: Solve for x
    x = 737,892,313.18/43,021.31
  6. Step 6: Final answer
    x = 17,151.79

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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.