Home / 28,984.91-43,402.97-20,087.56

Finding the Fourth Proportional to 28,984.91, 43,402.97 and 20,087.56

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Solution

The fourth proportional to 28,984.91, 43,402.97 and 20,087.56 is: 30,079.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,984.91 : 43,402.97 = 20,087.56 : x
  2. Step 2: Convert to fraction form
    28,984.91/43,402.97 = 20,087.56/x
  3. Step 3: Cross multiply
    28,984.91x = 43,402.97 × 20,087.56
  4. Step 4: Simplify right side
    28,984.91x = 871,859,663.62
  5. Step 5: Solve for x
    x = 871,859,663.62/28,984.91
  6. Step 6: Final answer
    x = 30,079.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.