Home / 20,841.90-31,259.57-6,801.86

Finding the Fourth Proportional to 20,841.90, 31,259.57 and 6,801.86

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Solution

The fourth proportional to 20,841.90, 31,259.57 and 6,801.86 is: 10,201.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.90 : 31,259.57 = 6,801.86 : x
  2. Step 2: Convert to fraction form
    20,841.90/31,259.57 = 6,801.86/x
  3. Step 3: Cross multiply
    20,841.90x = 31,259.57 × 6,801.86
  4. Step 4: Simplify right side
    20,841.90x = 212,623,028.49
  5. Step 5: Solve for x
    x = 212,623,028.49/20,841.90
  6. Step 6: Final answer
    x = 10,201.71

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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.