Home / 36,039.66-49,733.10-20,121

Finding the Fourth Proportional to 36,039.66, 49,733.10 and 20,121

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Solution

The fourth proportional to 36,039.66, 49,733.10 and 20,121 is: 27,766.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,039.66 : 49,733.10 = 20,121 : x
  2. Step 2: Convert to fraction form
    36,039.66/49,733.10 = 20,121/x
  3. Step 3: Cross multiply
    36,039.66x = 49,733.10 × 20,121
  4. Step 4: Simplify right side
    36,039.66x = 1,000,679,705.10
  5. Step 5: Solve for x
    x = 1,000,679,705.10/36,039.66
  6. Step 6: Final answer
    x = 27,766.07

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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.