Home / 43,825.32-65,747.70-20,439

Finding the Fourth Proportional to 43,825.32, 65,747.70 and 20,439

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Solution

The fourth proportional to 43,825.32, 65,747.70 and 20,439 is: 30,663.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,825.32 : 65,747.70 = 20,439 : x
  2. Step 2: Convert to fraction form
    43,825.32/65,747.70 = 20,439/x
  3. Step 3: Cross multiply
    43,825.32x = 65,747.70 × 20,439
  4. Step 4: Simplify right side
    43,825.32x = 1,343,817,240.30
  5. Step 5: Solve for x
    x = 1,343,817,240.30/43,825.32
  6. Step 6: Final answer
    x = 30,663.03

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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.