Home / 31,935.78-44,071.38-18,514.81

Finding the Fourth Proportional to 31,935.78, 44,071.38 and 18,514.81

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Solution

The fourth proportional to 31,935.78, 44,071.38 and 18,514.81 is: 25,550.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,935.78 : 44,071.38 = 18,514.81 : x
  2. Step 2: Convert to fraction form
    31,935.78/44,071.38 = 18,514.81/x
  3. Step 3: Cross multiply
    31,935.78x = 44,071.38 × 18,514.81
  4. Step 4: Simplify right side
    31,935.78x = 815,973,227.14
  5. Step 5: Solve for x
    x = 815,973,227.14/31,935.78
  6. Step 6: Final answer
    x = 25,550.44

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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.