Home / 39,003.36-53,824.30-21,098.21

Finding the Fourth Proportional to 39,003.36, 53,824.30 and 21,098.21

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Solution

The fourth proportional to 39,003.36, 53,824.30 and 21,098.21 is: 29,115.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,003.36 : 53,824.30 = 21,098.21 : x
  2. Step 2: Convert to fraction form
    39,003.36/53,824.30 = 21,098.21/x
  3. Step 3: Cross multiply
    39,003.36x = 53,824.30 × 21,098.21
  4. Step 4: Simplify right side
    39,003.36x = 1,135,596,062.64
  5. Step 5: Solve for x
    x = 1,135,596,062.64/39,003.36
  6. Step 6: Final answer
    x = 29,115.34

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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.