Home / 31,401.66-43,327.68-18,650.27

Finding the Fourth Proportional to 31,401.66, 43,327.68 and 18,650.27

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Solution

The fourth proportional to 31,401.66, 43,327.68 and 18,650.27 is: 25,733.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,401.66 : 43,327.68 = 18,650.27 : x
  2. Step 2: Convert to fraction form
    31,401.66/43,327.68 = 18,650.27/x
  3. Step 3: Cross multiply
    31,401.66x = 43,327.68 × 18,650.27
  4. Step 4: Simplify right side
    31,401.66x = 808,072,713.84
  5. Step 5: Solve for x
    x = 808,072,713.84/31,401.66
  6. Step 6: Final answer
    x = 25,733.44

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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.