Home / 26,812.70-36,979.22-20,113.19

Finding the Fourth Proportional to 26,812.70, 36,979.22 and 20,113.19

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Solution

The fourth proportional to 26,812.70, 36,979.22 and 20,113.19 is: 27,739.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,812.70 : 36,979.22 = 20,113.19 : x
  2. Step 2: Convert to fraction form
    26,812.70/36,979.22 = 20,113.19/x
  3. Step 3: Cross multiply
    26,812.70x = 36,979.22 × 20,113.19
  4. Step 4: Simplify right side
    26,812.70x = 743,769,792.45
  5. Step 5: Solve for x
    x = 743,769,792.45/26,812.70
  6. Step 6: Final answer
    x = 27,739.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.