Home / 43,378.56-65,047.68-21,192.96

Finding the Fourth Proportional to 43,378.56, 65,047.68 and 21,192.96

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Solution

The fourth proportional to 43,378.56, 65,047.68 and 21,192.96 is: 31,779.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,378.56 : 65,047.68 = 21,192.96 : x
  2. Step 2: Convert to fraction form
    43,378.56/65,047.68 = 21,192.96/x
  3. Step 3: Cross multiply
    43,378.56x = 65,047.68 × 21,192.96
  4. Step 4: Simplify right side
    43,378.56x = 1,378,552,880.33
  5. Step 5: Solve for x
    x = 1,378,552,880.33/43,378.56
  6. Step 6: Final answer
    x = 31,779.59

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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.