Home / 20,827.17-31,243.19-6,786.63

Finding the Fourth Proportional to 20,827.17, 31,243.19 and 6,786.63

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Solution

The fourth proportional to 20,827.17, 31,243.19 and 6,786.63 is: 10,180.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,827.17 : 31,243.19 = 6,786.63 : x
  2. Step 2: Convert to fraction form
    20,827.17/31,243.19 = 6,786.63/x
  3. Step 3: Cross multiply
    20,827.17x = 31,243.19 × 6,786.63
  4. Step 4: Simplify right side
    20,827.17x = 212,035,936.62
  5. Step 5: Solve for x
    x = 212,035,936.62/20,827.17
  6. Step 6: Final answer
    x = 10,180.74

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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.