Home / 39,101.22-53,959.86-21,196.20

Finding the Fourth Proportional to 39,101.22, 53,959.86 and 21,196.20

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Solution

The fourth proportional to 39,101.22, 53,959.86 and 21,196.20 is: 29,250.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,101.22 : 53,959.86 = 21,196.20 : x
  2. Step 2: Convert to fraction form
    39,101.22/53,959.86 = 21,196.20/x
  3. Step 3: Cross multiply
    39,101.22x = 53,959.86 × 21,196.20
  4. Step 4: Simplify right side
    39,101.22x = 1,143,743,984.53
  5. Step 5: Solve for x
    x = 1,143,743,984.53/39,101.22
  6. Step 6: Final answer
    x = 29,250.85

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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.