Home / 39,162.43-54,044.22-21,257.45

Finding the Fourth Proportional to 39,162.43, 54,044.22 and 21,257.45

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Solution

The fourth proportional to 39,162.43, 54,044.22 and 21,257.45 is: 29,335.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,162.43 : 54,044.22 = 21,257.45 : x
  2. Step 2: Convert to fraction form
    39,162.43/54,044.22 = 21,257.45/x
  3. Step 3: Cross multiply
    39,162.43x = 54,044.22 × 21,257.45
  4. Step 4: Simplify right side
    39,162.43x = 1,148,842,034.22
  5. Step 5: Solve for x
    x = 1,148,842,034.22/39,162.43
  6. Step 6: Final answer
    x = 29,335.31

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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.