Home / 21,846.38-32,769.59-5,430.38

Finding the Fourth Proportional to 21,846.38, 32,769.59 and 5,430.38

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Solution

The fourth proportional to 21,846.38, 32,769.59 and 5,430.38 is: 8,145.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,846.38 : 32,769.59 = 5,430.38 : x
  2. Step 2: Convert to fraction form
    21,846.38/32,769.59 = 5,430.38/x
  3. Step 3: Cross multiply
    21,846.38x = 32,769.59 × 5,430.38
  4. Step 4: Simplify right side
    21,846.38x = 177,951,135.14
  5. Step 5: Solve for x
    x = 177,951,135.14/21,846.38
  6. Step 6: Final answer
    x = 8,145.57

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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.