Home / 21,027.25-29,018.15-12,076.35

Finding the Fourth Proportional to 21,027.25, 29,018.15 and 12,076.35

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Solution

The fourth proportional to 21,027.25, 29,018.15 and 12,076.35 is: 16,665.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027.25 : 29,018.15 = 12,076.35 : x
  2. Step 2: Convert to fraction form
    21,027.25/29,018.15 = 12,076.35/x
  3. Step 3: Cross multiply
    21,027.25x = 29,018.15 × 12,076.35
  4. Step 4: Simplify right side
    21,027.25x = 350,433,335.75
  5. Step 5: Solve for x
    x = 350,433,335.75/21,027.25
  6. Step 6: Final answer
    x = 16,665.68

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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.