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Finding the Fourth Proportional to 31,682.71, 43,733.07 and 18,259.32

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Solution

The fourth proportional to 31,682.71, 43,733.07 and 18,259.32 is: 25,204.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,682.71 : 43,733.07 = 18,259.32 : x
  2. Step 2: Convert to fraction form
    31,682.71/43,733.07 = 18,259.32/x
  3. Step 3: Cross multiply
    31,682.71x = 43,733.07 × 18,259.32
  4. Step 4: Simplify right side
    31,682.71x = 798,536,283.71
  5. Step 5: Solve for x
    x = 798,536,283.71/31,682.71
  6. Step 6: Final answer
    x = 25,204.17

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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.