Home / 34,195.84-47,194.32-20,769.28

Finding the Fourth Proportional to 34,195.84, 47,194.32 and 20,769.28

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Solution

The fourth proportional to 34,195.84, 47,194.32 and 20,769.28 is: 28,664.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,195.84 : 47,194.32 = 20,769.28 : x
  2. Step 2: Convert to fraction form
    34,195.84/47,194.32 = 20,769.28/x
  3. Step 3: Cross multiply
    34,195.84x = 47,194.32 × 20,769.28
  4. Step 4: Simplify right side
    34,195.84x = 980,192,046.49
  5. Step 5: Solve for x
    x = 980,192,046.49/34,195.84
  6. Step 6: Final answer
    x = 28,664.07

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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.