Home / 21,040.88-29,027.30-12,086.34

Finding the Fourth Proportional to 21,040.88, 29,027.30 and 12,086.34

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Solution

The fourth proportional to 21,040.88, 29,027.30 and 12,086.34 is: 16,673.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.88 : 29,027.30 = 12,086.34 : x
  2. Step 2: Convert to fraction form
    21,040.88/29,027.30 = 12,086.34/x
  3. Step 3: Cross multiply
    21,040.88x = 29,027.30 × 12,086.34
  4. Step 4: Simplify right side
    21,040.88x = 350,833,817.08
  5. Step 5: Solve for x
    x = 350,833,817.08/21,040.88
  6. Step 6: Final answer
    x = 16,673.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.