Home / 63,621.80-95,408.38-20,917.28

Finding the Fourth Proportional to 63,621.80, 95,408.38 and 20,917.28

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Solution

The fourth proportional to 63,621.80, 95,408.38 and 20,917.28 is: 31,367.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,621.80 : 95,408.38 = 20,917.28 : x
  2. Step 2: Convert to fraction form
    63,621.80/95,408.38 = 20,917.28/x
  3. Step 3: Cross multiply
    63,621.80x = 95,408.38 × 20,917.28
  4. Step 4: Simplify right side
    63,621.80x = 1,995,683,798.81
  5. Step 5: Solve for x
    x = 1,995,683,798.81/63,621.80
  6. Step 6: Final answer
    x = 31,367.92

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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.