Home / 28,066.14-38,777.76-22,142.88

Finding the Fourth Proportional to 28,066.14, 38,777.76 and 22,142.88

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Solution

The fourth proportional to 28,066.14, 38,777.76 and 22,142.88 is: 30,593.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.14 : 38,777.76 = 22,142.88 : x
  2. Step 2: Convert to fraction form
    28,066.14/38,777.76 = 22,142.88/x
  3. Step 3: Cross multiply
    28,066.14x = 38,777.76 × 22,142.88
  4. Step 4: Simplify right side
    28,066.14x = 858,651,286.35
  5. Step 5: Solve for x
    x = 858,651,286.35/28,066.14
  6. Step 6: Final answer
    x = 30,593.85

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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.