Home / 31,781.87-43,904.72-25,400.27

Finding the Fourth Proportional to 31,781.87, 43,904.72 and 25,400.27

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Solution

The fourth proportional to 31,781.87, 43,904.72 and 25,400.27 is: 35,088.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,781.87 : 43,904.72 = 25,400.27 : x
  2. Step 2: Convert to fraction form
    31,781.87/43,904.72 = 25,400.27/x
  3. Step 3: Cross multiply
    31,781.87x = 43,904.72 × 25,400.27
  4. Step 4: Simplify right side
    31,781.87x = 1,115,191,742.27
  5. Step 5: Solve for x
    x = 1,115,191,742.27/31,781.87
  6. Step 6: Final answer
    x = 35,088.93

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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.