Home / 31,238.51-43,091.62-19,144.85

Finding the Fourth Proportional to 31,238.51, 43,091.62 and 19,144.85

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Solution

The fourth proportional to 31,238.51, 43,091.62 and 19,144.85 is: 26,409.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,238.51 : 43,091.62 = 19,144.85 : x
  2. Step 2: Convert to fraction form
    31,238.51/43,091.62 = 19,144.85/x
  3. Step 3: Cross multiply
    31,238.51x = 43,091.62 × 19,144.85
  4. Step 4: Simplify right side
    31,238.51x = 824,982,634.06
  5. Step 5: Solve for x
    x = 824,982,634.06/31,238.51
  6. Step 6: Final answer
    x = 26,409.16

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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.