Home / 21,026.37-29,016.18-12,076.68

Finding the Fourth Proportional to 21,026.37, 29,016.18 and 12,076.68

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Solution

The fourth proportional to 21,026.37, 29,016.18 and 12,076.68 is: 16,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026.37 : 29,016.18 = 12,076.68 : x
  2. Step 2: Convert to fraction form
    21,026.37/29,016.18 = 12,076.68/x
  3. Step 3: Cross multiply
    21,026.37x = 29,016.18 × 12,076.68
  4. Step 4: Simplify right side
    21,026.37x = 350,419,120.68
  5. Step 5: Solve for x
    x = 350,419,120.68/21,026.37
  6. Step 6: Final answer
    x = 16,665.70

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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.