Home / 34,309.44-47,356.20-20,171.70

Finding the Fourth Proportional to 34,309.44, 47,356.20 and 20,171.70

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Solution

The fourth proportional to 34,309.44, 47,356.20 and 20,171.70 is: 27,842.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,309.44 : 47,356.20 = 20,171.70 : x
  2. Step 2: Convert to fraction form
    34,309.44/47,356.20 = 20,171.70/x
  3. Step 3: Cross multiply
    34,309.44x = 47,356.20 × 20,171.70
  4. Step 4: Simplify right side
    34,309.44x = 955,255,059.54
  5. Step 5: Solve for x
    x = 955,255,059.54/34,309.44
  6. Step 6: Final answer
    x = 27,842.34

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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.