Home / 36,805.85-50,775.09-21,688.19

Finding the Fourth Proportional to 36,805.85, 50,775.09 and 21,688.19

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Solution

The fourth proportional to 36,805.85, 50,775.09 and 21,688.19 is: 29,919.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,805.85 : 50,775.09 = 21,688.19 : x
  2. Step 2: Convert to fraction form
    36,805.85/50,775.09 = 21,688.19/x
  3. Step 3: Cross multiply
    36,805.85x = 50,775.09 × 21,688.19
  4. Step 4: Simplify right side
    36,805.85x = 1,101,219,799.19
  5. Step 5: Solve for x
    x = 1,101,219,799.19/36,805.85
  6. Step 6: Final answer
    x = 29,919.69

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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.