Home / 39,309.22-54,246.49-21,404.18

Finding the Fourth Proportional to 39,309.22, 54,246.49 and 21,404.18

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Solution

The fourth proportional to 39,309.22, 54,246.49 and 21,404.18 is: 29,537.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,309.22 : 54,246.49 = 21,404.18 : x
  2. Step 2: Convert to fraction form
    39,309.22/54,246.49 = 21,404.18/x
  3. Step 3: Cross multiply
    39,309.22x = 54,246.49 × 21,404.18
  4. Step 4: Simplify right side
    39,309.22x = 1,161,101,464.15
  5. Step 5: Solve for x
    x = 1,161,101,464.15/39,309.22
  6. Step 6: Final answer
    x = 29,537.64

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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.