Home / 36,036.77-49,733.19-20,120.87

Finding the Fourth Proportional to 36,036.77, 49,733.19 and 20,120.87

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Solution

The fourth proportional to 36,036.77, 49,733.19 and 20,120.87 is: 27,768.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,036.77 : 49,733.19 = 20,120.87 : x
  2. Step 2: Convert to fraction form
    36,036.77/49,733.19 = 20,120.87/x
  3. Step 3: Cross multiply
    36,036.77x = 49,733.19 × 20,120.87
  4. Step 4: Simplify right side
    36,036.77x = 1,000,675,175.01
  5. Step 5: Solve for x
    x = 1,000,675,175.01/36,036.77
  6. Step 6: Final answer
    x = 27,768.17

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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.