Home / 36,782.69-50,763.85-21,680.20

Finding the Fourth Proportional to 36,782.69, 50,763.85 and 21,680.20

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Solution

The fourth proportional to 36,782.69, 50,763.85 and 21,680.20 is: 29,920.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,782.69 : 50,763.85 = 21,680.20 : x
  2. Step 2: Convert to fraction form
    36,782.69/50,763.85 = 21,680.20/x
  3. Step 3: Cross multiply
    36,782.69x = 50,763.85 × 21,680.20
  4. Step 4: Simplify right side
    36,782.69x = 1,100,570,430.02
  5. Step 5: Solve for x
    x = 1,100,570,430.02/36,782.69
  6. Step 6: Final answer
    x = 29,920.88

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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.