Home / 36,021.36-49,707.84-20,105.46

Finding the Fourth Proportional to 36,021.36, 49,707.84 and 20,105.46

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Solution

The fourth proportional to 36,021.36, 49,707.84 and 20,105.46 is: 27,744.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,021.36 : 49,707.84 = 20,105.46 : x
  2. Step 2: Convert to fraction form
    36,021.36/49,707.84 = 20,105.46/x
  3. Step 3: Cross multiply
    36,021.36x = 49,707.84 × 20,105.46
  4. Step 4: Simplify right side
    36,021.36x = 999,398,988.81
  5. Step 5: Solve for x
    x = 999,398,988.81/36,021.36
  6. Step 6: Final answer
    x = 27,744.62

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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.