Home / 31,827.94-43,919.22-18,398.14

Finding the Fourth Proportional to 31,827.94, 43,919.22 and 18,398.14

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Solution

The fourth proportional to 31,827.94, 43,919.22 and 18,398.14 is: 25,387.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,827.94 : 43,919.22 = 18,398.14 : x
  2. Step 2: Convert to fraction form
    31,827.94/43,919.22 = 18,398.14/x
  3. Step 3: Cross multiply
    31,827.94x = 43,919.22 × 18,398.14
  4. Step 4: Simplify right side
    31,827.94x = 808,031,958.25
  5. Step 5: Solve for x
    x = 808,031,958.25/31,827.94
  6. Step 6: Final answer
    x = 25,387.50

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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.