Home / 43,405.53-65,110.19-21,237.57

Finding the Fourth Proportional to 43,405.53, 65,110.19 and 21,237.57

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Solution

The fourth proportional to 43,405.53, 65,110.19 and 21,237.57 is: 31,857.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,405.53 : 65,110.19 = 21,237.57 : x
  2. Step 2: Convert to fraction form
    43,405.53/65,110.19 = 21,237.57/x
  3. Step 3: Cross multiply
    43,405.53x = 65,110.19 × 21,237.57
  4. Step 4: Simplify right side
    43,405.53x = 1,382,782,111.65
  5. Step 5: Solve for x
    x = 1,382,782,111.65/43,405.53
  6. Step 6: Final answer
    x = 31,857.28

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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.