Home / 31,876.68-47,822.58-20,199.72

Finding the Fourth Proportional to 31,876.68, 47,822.58 and 20,199.72

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Solution

The fourth proportional to 31,876.68, 47,822.58 and 20,199.72 is: 30,304.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,876.68 : 47,822.58 = 20,199.72 : x
  2. Step 2: Convert to fraction form
    31,876.68/47,822.58 = 20,199.72/x
  3. Step 3: Cross multiply
    31,876.68x = 47,822.58 × 20,199.72
  4. Step 4: Simplify right side
    31,876.68x = 966,002,725.68
  5. Step 5: Solve for x
    x = 966,002,725.68/31,876.68
  6. Step 6: Final answer
    x = 30,304.37

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1.5x scale

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.