Home / 31,379.27-43,301.84-17,765.20

Finding the Fourth Proportional to 31,379.27, 43,301.84 and 17,765.20

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Solution

The fourth proportional to 31,379.27, 43,301.84 and 17,765.20 is: 24,515.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,379.27 : 43,301.84 = 17,765.20 : x
  2. Step 2: Convert to fraction form
    31,379.27/43,301.84 = 17,765.20/x
  3. Step 3: Cross multiply
    31,379.27x = 43,301.84 × 17,765.20
  4. Step 4: Simplify right side
    31,379.27x = 769,265,717.51
  5. Step 5: Solve for x
    x = 769,265,717.51/31,379.27
  6. Step 6: Final answer
    x = 24,515.09

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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.