Home / 34,147.45-47,119.67-20,721.97

Finding the Fourth Proportional to 34,147.45, 47,119.67 and 20,721.97

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Solution

The fourth proportional to 34,147.45, 47,119.67 and 20,721.97 is: 28,594.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,147.45 : 47,119.67 = 20,721.97 : x
  2. Step 2: Convert to fraction form
    34,147.45/47,119.67 = 20,721.97/x
  3. Step 3: Cross multiply
    34,147.45x = 47,119.67 × 20,721.97
  4. Step 4: Simplify right side
    34,147.45x = 976,412,152.55
  5. Step 5: Solve for x
    x = 976,412,152.55/34,147.45
  6. Step 6: Final answer
    x = 28,594.00

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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.