Home / 31,997.06-44,135.39-19,421.81

Finding the Fourth Proportional to 31,997.06, 44,135.39 and 19,421.81

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Solution

The fourth proportional to 31,997.06, 44,135.39 and 19,421.81 is: 26,789.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,997.06 : 44,135.39 = 19,421.81 : x
  2. Step 2: Convert to fraction form
    31,997.06/44,135.39 = 19,421.81/x
  3. Step 3: Cross multiply
    31,997.06x = 44,135.39 × 19,421.81
  4. Step 4: Simplify right side
    31,997.06x = 857,189,061.75
  5. Step 5: Solve for x
    x = 857,189,061.75/31,997.06
  6. Step 6: Final answer
    x = 26,789.62

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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.