Home / 20,730.27-31,095.25-5,939.20

Finding the Fourth Proportional to 20,730.27, 31,095.25 and 5,939.20

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Solution

The fourth proportional to 20,730.27, 31,095.25 and 5,939.20 is: 8,908.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730.27 : 31,095.25 = 5,939.20 : x
  2. Step 2: Convert to fraction form
    20,730.27/31,095.25 = 5,939.20/x
  3. Step 3: Cross multiply
    20,730.27x = 31,095.25 × 5,939.20
  4. Step 4: Simplify right side
    20,730.27x = 184,680,908.80
  5. Step 5: Solve for x
    x = 184,680,908.80/20,730.27
  6. Step 6: Final answer
    x = 8,908.76

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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.