Home / 36,020.60-49,708.49-20,105.05

Finding the Fourth Proportional to 36,020.60, 49,708.49 and 20,105.05

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Solution

The fourth proportional to 36,020.60, 49,708.49 and 20,105.05 is: 27,744.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,020.60 : 49,708.49 = 20,105.05 : x
  2. Step 2: Convert to fraction form
    36,020.60/49,708.49 = 20,105.05/x
  3. Step 3: Cross multiply
    36,020.60x = 49,708.49 × 20,105.05
  4. Step 4: Simplify right side
    36,020.60x = 999,391,327.81
  5. Step 5: Solve for x
    x = 999,391,327.81/36,020.60
  6. Step 6: Final answer
    x = 27,744.99

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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.