Home / 36,217.50-49,980.33-21,120.63

Finding the Fourth Proportional to 36,217.50, 49,980.33 and 21,120.63

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Solution

The fourth proportional to 36,217.50, 49,980.33 and 21,120.63 is: 29,146.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,217.50 : 49,980.33 = 21,120.63 : x
  2. Step 2: Convert to fraction form
    36,217.50/49,980.33 = 21,120.63/x
  3. Step 3: Cross multiply
    36,217.50x = 49,980.33 × 21,120.63
  4. Step 4: Simplify right side
    36,217.50x = 1,055,616,057.21
  5. Step 5: Solve for x
    x = 1,055,616,057.21/36,217.50
  6. Step 6: Final answer
    x = 29,146.57

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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.