Home / 31,286.58-46,921.64-11,570.78

Finding the Fourth Proportional to 31,286.58, 46,921.64 and 11,570.78

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Solution

The fourth proportional to 31,286.58, 46,921.64 and 11,570.78 is: 17,353.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,286.58 : 46,921.64 = 11,570.78 : x
  2. Step 2: Convert to fraction form
    31,286.58/46,921.64 = 11,570.78/x
  3. Step 3: Cross multiply
    31,286.58x = 46,921.64 × 11,570.78
  4. Step 4: Simplify right side
    31,286.58x = 542,919,973.68
  5. Step 5: Solve for x
    x = 542,919,973.68/31,286.58
  6. Step 6: Final answer
    x = 17,353.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.