Home / 39,101.52-53,959.90-21,196.36

Finding the Fourth Proportional to 39,101.52, 53,959.90 and 21,196.36

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Solution

The fourth proportional to 39,101.52, 53,959.90 and 21,196.36 is: 29,250.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,101.52 : 53,959.90 = 21,196.36 : x
  2. Step 2: Convert to fraction form
    39,101.52/53,959.90 = 21,196.36/x
  3. Step 3: Cross multiply
    39,101.52x = 53,959.90 × 21,196.36
  4. Step 4: Simplify right side
    39,101.52x = 1,143,753,465.96
  5. Step 5: Solve for x
    x = 1,143,753,465.96/39,101.52
  6. Step 6: Final answer
    x = 29,250.87

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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.