Home / 31,530.68-43,512.68-17,384.04

Finding the Fourth Proportional to 31,530.68, 43,512.68 and 17,384.04

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Solution

The fourth proportional to 31,530.68, 43,512.68 and 17,384.04 is: 23,990.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,530.68 : 43,512.68 = 17,384.04 : x
  2. Step 2: Convert to fraction form
    31,530.68/43,512.68 = 17,384.04/x
  3. Step 3: Cross multiply
    31,530.68x = 43,512.68 × 17,384.04
  4. Step 4: Simplify right side
    31,530.68x = 756,426,169.63
  5. Step 5: Solve for x
    x = 756,426,169.63/31,530.68
  6. Step 6: Final answer
    x = 23,990.16

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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.