Home / 31,699.11-43,744.71-18,270.28

Finding the Fourth Proportional to 31,699.11, 43,744.71 and 18,270.28

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Solution

The fourth proportional to 31,699.11, 43,744.71 and 18,270.28 is: 25,212.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,699.11 : 43,744.71 = 18,270.28 : x
  2. Step 2: Convert to fraction form
    31,699.11/43,744.71 = 18,270.28/x
  3. Step 3: Cross multiply
    31,699.11x = 43,744.71 × 18,270.28
  4. Step 4: Simplify right side
    31,699.11x = 799,227,874.58
  5. Step 5: Solve for x
    x = 799,227,874.58/31,699.11
  6. Step 6: Final answer
    x = 25,212.94

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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.