Home / 31,666.32-43,696.80-17,515.68

Finding the Fourth Proportional to 31,666.32, 43,696.80 and 17,515.68

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Solution

The fourth proportional to 31,666.32, 43,696.80 and 17,515.68 is: 24,170.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,666.32 : 43,696.80 = 17,515.68 : x
  2. Step 2: Convert to fraction form
    31,666.32/43,696.80 = 17,515.68/x
  3. Step 3: Cross multiply
    31,666.32x = 43,696.80 × 17,515.68
  4. Step 4: Simplify right side
    31,666.32x = 765,379,165.82
  5. Step 5: Solve for x
    x = 765,379,165.82/31,666.32
  6. Step 6: Final answer
    x = 24,170.13

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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.