Home / 20,877.64-31,319.27-6,086.44

Finding the Fourth Proportional to 20,877.64, 31,319.27 and 6,086.44

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Solution

The fourth proportional to 20,877.64, 31,319.27 and 6,086.44 is: 9,130.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,877.64 : 31,319.27 = 6,086.44 : x
  2. Step 2: Convert to fraction form
    20,877.64/31,319.27 = 6,086.44/x
  3. Step 3: Cross multiply
    20,877.64x = 31,319.27 × 6,086.44
  4. Step 4: Simplify right side
    20,877.64x = 190,622,794.62
  5. Step 5: Solve for x
    x = 190,622,794.62/20,877.64
  6. Step 6: Final answer
    x = 9,130.48

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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.