Home / 34,769.28-47,976-19,661.44

Finding the Fourth Proportional to 34,769.28, 47,976 and 19,661.44

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Solution

The fourth proportional to 34,769.28, 47,976 and 19,661.44 is: 27,129.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,769.28 : 47,976 = 19,661.44 : x
  2. Step 2: Convert to fraction form
    34,769.28/47,976 = 19,661.44/x
  3. Step 3: Cross multiply
    34,769.28x = 47,976 × 19,661.44
  4. Step 4: Simplify right side
    34,769.28x = 943,277,245.44
  5. Step 5: Solve for x
    x = 943,277,245.44/34,769.28
  6. Step 6: Final answer
    x = 27,129.62

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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.