Home / 29,121.70-43,616.90-20,395.56

Finding the Fourth Proportional to 29,121.70, 43,616.90 and 20,395.56

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Solution

The fourth proportional to 29,121.70, 43,616.90 and 20,395.56 is: 30,547.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,121.70 : 43,616.90 = 20,395.56 : x
  2. Step 2: Convert to fraction form
    29,121.70/43,616.90 = 20,395.56/x
  3. Step 3: Cross multiply
    29,121.70x = 43,616.90 × 20,395.56
  4. Step 4: Simplify right side
    29,121.70x = 889,591,100.96
  5. Step 5: Solve for x
    x = 889,591,100.96/29,121.70
  6. Step 6: Final answer
    x = 30,547.36

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1.5x scale

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.