Home / 31,524.21-43,501.62-18,791.78

Finding the Fourth Proportional to 31,524.21, 43,501.62 and 18,791.78

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Solution

The fourth proportional to 31,524.21, 43,501.62 and 18,791.78 is: 25,931.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,524.21 : 43,501.62 = 18,791.78 : x
  2. Step 2: Convert to fraction form
    31,524.21/43,501.62 = 18,791.78/x
  3. Step 3: Cross multiply
    31,524.21x = 43,501.62 × 18,791.78
  4. Step 4: Simplify right side
    31,524.21x = 817,472,725.64
  5. Step 5: Solve for x
    x = 817,472,725.64/31,524.21
  6. Step 6: Final answer
    x = 25,931.58

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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.