Home / 39,680.34-54,759.77-21,776.48

Finding the Fourth Proportional to 39,680.34, 54,759.77 and 21,776.48

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Solution

The fourth proportional to 39,680.34, 54,759.77 and 21,776.48 is: 30,052.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,680.34 : 54,759.77 = 21,776.48 : x
  2. Step 2: Convert to fraction form
    39,680.34/54,759.77 = 21,776.48/x
  3. Step 3: Cross multiply
    39,680.34x = 54,759.77 × 21,776.48
  4. Step 4: Simplify right side
    39,680.34x = 1,192,474,858.88
  5. Step 5: Solve for x
    x = 1,192,474,858.88/39,680.34
  6. Step 6: Final answer
    x = 30,052.04

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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.