Home / 31,175.69-43,019.66-19,242.87

Finding the Fourth Proportional to 31,175.69, 43,019.66 and 19,242.87

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Solution

The fourth proportional to 31,175.69, 43,019.66 and 19,242.87 is: 26,553.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,175.69 : 43,019.66 = 19,242.87 : x
  2. Step 2: Convert to fraction form
    31,175.69/43,019.66 = 19,242.87/x
  3. Step 3: Cross multiply
    31,175.69x = 43,019.66 × 19,242.87
  4. Step 4: Simplify right side
    31,175.69x = 827,821,503.37
  5. Step 5: Solve for x
    x = 827,821,503.37/31,175.69
  6. Step 6: Final answer
    x = 26,553.43

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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.