Home / 39,161.70-54,042.57-21,256.24

Finding the Fourth Proportional to 39,161.70, 54,042.57 and 21,256.24

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Solution

The fourth proportional to 39,161.70, 54,042.57 and 21,256.24 is: 29,333.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,161.70 : 54,042.57 = 21,256.24 : x
  2. Step 2: Convert to fraction form
    39,161.70/54,042.57 = 21,256.24/x
  3. Step 3: Cross multiply
    39,161.70x = 54,042.57 × 21,256.24
  4. Step 4: Simplify right side
    39,161.70x = 1,148,741,838.14
  5. Step 5: Solve for x
    x = 1,148,741,838.14/39,161.70
  6. Step 6: Final answer
    x = 29,333.30

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Double scale
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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.