Home / 31,879.01-47,774.76-20,171.27

Finding the Fourth Proportional to 31,879.01, 47,774.76 and 20,171.27

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Solution

The fourth proportional to 31,879.01, 47,774.76 and 20,171.27 is: 30,229.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,879.01 : 47,774.76 = 20,171.27 : x
  2. Step 2: Convert to fraction form
    31,879.01/47,774.76 = 20,171.27/x
  3. Step 3: Cross multiply
    31,879.01x = 47,774.76 × 20,171.27
  4. Step 4: Simplify right side
    31,879.01x = 963,677,344.27
  5. Step 5: Solve for x
    x = 963,677,344.27/31,879.01
  6. Step 6: Final answer
    x = 30,229.22

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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.