Home / 36,921.11-50,950.46-21,005.21

Finding the Fourth Proportional to 36,921.11, 50,950.46 and 21,005.21

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Solution

The fourth proportional to 36,921.11, 50,950.46 and 21,005.21 is: 28,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,921.11 : 50,950.46 = 21,005.21 : x
  2. Step 2: Convert to fraction form
    36,921.11/50,950.46 = 21,005.21/x
  3. Step 3: Cross multiply
    36,921.11x = 50,950.46 × 21,005.21
  4. Step 4: Simplify right side
    36,921.11x = 1,070,224,752.12
  5. Step 5: Solve for x
    x = 1,070,224,752.12/36,921.11
  6. Step 6: Final answer
    x = 28,986.80

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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.