Home / 20,674.61-31,011.92-5,092.23

Finding the Fourth Proportional to 20,674.61, 31,011.92 and 5,092.23

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Solution

The fourth proportional to 20,674.61, 31,011.92 and 5,092.23 is: 7,638.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.61 : 31,011.92 = 5,092.23 : x
  2. Step 2: Convert to fraction form
    20,674.61/31,011.92 = 5,092.23/x
  3. Step 3: Cross multiply
    20,674.61x = 31,011.92 × 5,092.23
  4. Step 4: Simplify right side
    20,674.61x = 157,919,803.92
  5. Step 5: Solve for x
    x = 157,919,803.92/20,674.61
  6. Step 6: Final answer
    x = 7,638.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.