Home / 39,441.67-54,429.22-21,536.66

Finding the Fourth Proportional to 39,441.67, 54,429.22 and 21,536.66

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Solution

The fourth proportional to 39,441.67, 54,429.22 and 21,536.66 is: 29,720.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,441.67 : 54,429.22 = 21,536.66 : x
  2. Step 2: Convert to fraction form
    39,441.67/54,429.22 = 21,536.66/x
  3. Step 3: Cross multiply
    39,441.67x = 54,429.22 × 21,536.66
  4. Step 4: Simplify right side
    39,441.67x = 1,172,223,605.21
  5. Step 5: Solve for x
    x = 1,172,223,605.21/39,441.67
  6. Step 6: Final answer
    x = 29,720.44

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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.