Home / 21,027.18-31,540.90-6,236.22

Finding the Fourth Proportional to 21,027.18, 31,540.90 and 6,236.22

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Solution

The fourth proportional to 21,027.18, 31,540.90 and 6,236.22 is: 9,354.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027.18 : 31,540.90 = 6,236.22 : x
  2. Step 2: Convert to fraction form
    21,027.18/31,540.90 = 6,236.22/x
  3. Step 3: Cross multiply
    21,027.18x = 31,540.90 × 6,236.22
  4. Step 4: Simplify right side
    21,027.18x = 196,695,991.40
  5. Step 5: Solve for x
    x = 196,695,991.40/21,027.18
  6. Step 6: Final answer
    x = 9,354.37

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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.