Home / 39,161.52-54,042.04-21,256.56

Finding the Fourth Proportional to 39,161.52, 54,042.04 and 21,256.56

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Solution

The fourth proportional to 39,161.52, 54,042.04 and 21,256.56 is: 29,333.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,161.52 : 54,042.04 = 21,256.56 : x
  2. Step 2: Convert to fraction form
    39,161.52/54,042.04 = 21,256.56/x
  3. Step 3: Cross multiply
    39,161.52x = 54,042.04 × 21,256.56
  4. Step 4: Simplify right side
    39,161.52x = 1,148,747,865.78
  5. Step 5: Solve for x
    x = 1,148,747,865.78/39,161.52
  6. Step 6: Final answer
    x = 29,333.59

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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.