Home / 31,530.90-43,512.94-17,384.25

Finding the Fourth Proportional to 31,530.90, 43,512.94 and 17,384.25

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Solution

The fourth proportional to 31,530.90, 43,512.94 and 17,384.25 is: 23,990.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,530.90 : 43,512.94 = 17,384.25 : x
  2. Step 2: Convert to fraction form
    31,530.90/43,512.94 = 17,384.25/x
  3. Step 3: Cross multiply
    31,530.90x = 43,512.94 × 17,384.25
  4. Step 4: Simplify right side
    31,530.90x = 756,439,827.20
  5. Step 5: Solve for x
    x = 756,439,827.20/31,530.90
  6. Step 6: Final answer
    x = 23,990.43

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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.