Home / 19,805.82-29,708.73-12,016.86

Finding the Fourth Proportional to 19,805.82, 29,708.73 and 12,016.86

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Solution

The fourth proportional to 19,805.82, 29,708.73 and 12,016.86 is: 18,025.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.82 : 29,708.73 = 12,016.86 : x
  2. Step 2: Convert to fraction form
    19,805.82/29,708.73 = 12,016.86/x
  3. Step 3: Cross multiply
    19,805.82x = 29,708.73 × 12,016.86
  4. Step 4: Simplify right side
    19,805.82x = 357,005,649.19
  5. Step 5: Solve for x
    x = 357,005,649.19/19,805.82
  6. Step 6: Final answer
    x = 18,025.29

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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.