Home / 36,139.63-49,873.29-19,786.57

Finding the Fourth Proportional to 36,139.63, 49,873.29 and 19,786.57

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Solution

The fourth proportional to 36,139.63, 49,873.29 and 19,786.57 is: 27,305.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,139.63 : 49,873.29 = 19,786.57 : x
  2. Step 2: Convert to fraction form
    36,139.63/49,873.29 = 19,786.57/x
  3. Step 3: Cross multiply
    36,139.63x = 49,873.29 × 19,786.57
  4. Step 4: Simplify right side
    36,139.63x = 986,821,343.72
  5. Step 5: Solve for x
    x = 986,821,343.72/36,139.63
  6. Step 6: Final answer
    x = 27,305.80

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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.