Home / 43,012.70-64,537.26-20,842.58

Finding the Fourth Proportional to 43,012.70, 64,537.26 and 20,842.58

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Solution

The fourth proportional to 43,012.70, 64,537.26 and 20,842.58 is: 31,272.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,012.70 : 64,537.26 = 20,842.58 : x
  2. Step 2: Convert to fraction form
    43,012.70/64,537.26 = 20,842.58/x
  3. Step 3: Cross multiply
    43,012.70x = 64,537.26 × 20,842.58
  4. Step 4: Simplify right side
    43,012.70x = 1,345,123,004.53
  5. Step 5: Solve for x
    x = 1,345,123,004.53/43,012.70
  6. Step 6: Final answer
    x = 31,272.69

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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.