Home / 39,160.99-54,042.29-21,256.01

Finding the Fourth Proportional to 39,160.99, 54,042.29 and 21,256.01

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Solution

The fourth proportional to 39,160.99, 54,042.29 and 21,256.01 is: 29,333.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,160.99 : 54,042.29 = 21,256.01 : x
  2. Step 2: Convert to fraction form
    39,160.99/54,042.29 = 21,256.01/x
  3. Step 3: Cross multiply
    39,160.99x = 54,042.29 × 21,256.01
  4. Step 4: Simplify right side
    39,160.99x = 1,148,723,456.66
  5. Step 5: Solve for x
    x = 1,148,723,456.66/39,160.99
  6. Step 6: Final answer
    x = 29,333.36

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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.