Home / 34,393.14-47,470.97-20,971.79

Finding the Fourth Proportional to 34,393.14, 47,470.97 and 20,971.79

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Solution

The fourth proportional to 34,393.14, 47,470.97 and 20,971.79 is: 28,946.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,393.14 : 47,470.97 = 20,971.79 : x
  2. Step 2: Convert to fraction form
    34,393.14/47,470.97 = 20,971.79/x
  3. Step 3: Cross multiply
    34,393.14x = 47,470.97 × 20,971.79
  4. Step 4: Simplify right side
    34,393.14x = 995,551,213.94
  5. Step 5: Solve for x
    x = 995,551,213.94/34,393.14
  6. Step 6: Final answer
    x = 28,946.21

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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.