Home / 26,747.48-40,121.04-20,909

Finding the Fourth Proportional to 26,747.48, 40,121.04 and 20,909

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Solution

The fourth proportional to 26,747.48, 40,121.04 and 20,909 is: 31,363.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,747.48 : 40,121.04 = 20,909 : x
  2. Step 2: Convert to fraction form
    26,747.48/40,121.04 = 20,909/x
  3. Step 3: Cross multiply
    26,747.48x = 40,121.04 × 20,909
  4. Step 4: Simplify right side
    26,747.48x = 838,890,825.36
  5. Step 5: Solve for x
    x = 838,890,825.36/26,747.48
  6. Step 6: Final answer
    x = 31,363.36

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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.