Home / 21,027.80-31,548.27-6,236.80

Finding the Fourth Proportional to 21,027.80, 31,548.27 and 6,236.80

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Solution

The fourth proportional to 21,027.80, 31,548.27 and 6,236.80 is: 9,357.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027.80 : 31,548.27 = 6,236.80 : x
  2. Step 2: Convert to fraction form
    21,027.80/31,548.27 = 6,236.80/x
  3. Step 3: Cross multiply
    21,027.80x = 31,548.27 × 6,236.80
  4. Step 4: Simplify right side
    21,027.80x = 196,760,250.34
  5. Step 5: Solve for x
    x = 196,760,250.34/21,027.80
  6. Step 6: Final answer
    x = 9,357.15

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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.