Home / 34,719.43-47,909.94-20,377.72

Finding the Fourth Proportional to 34,719.43, 47,909.94 and 20,377.72

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Solution

The fourth proportional to 34,719.43, 47,909.94 and 20,377.72 is: 28,119.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,719.43 : 47,909.94 = 20,377.72 : x
  2. Step 2: Convert to fraction form
    34,719.43/47,909.94 = 20,377.72/x
  3. Step 3: Cross multiply
    34,719.43x = 47,909.94 × 20,377.72
  4. Step 4: Simplify right side
    34,719.43x = 976,295,342.54
  5. Step 5: Solve for x
    x = 976,295,342.54/34,719.43
  6. Step 6: Final answer
    x = 28,119.57

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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.