Home / 39,354.64-54,309.44-21,449.66

Finding the Fourth Proportional to 39,354.64, 54,309.44 and 21,449.66

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Solution

The fourth proportional to 39,354.64, 54,309.44 and 21,449.66 is: 29,600.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,354.64 : 54,309.44 = 21,449.66 : x
  2. Step 2: Convert to fraction form
    39,354.64/54,309.44 = 21,449.66/x
  3. Step 3: Cross multiply
    39,354.64x = 54,309.44 × 21,449.66
  4. Step 4: Simplify right side
    39,354.64x = 1,164,918,697.62
  5. Step 5: Solve for x
    x = 1,164,918,697.62/39,354.64
  6. Step 6: Final answer
    x = 29,600.55

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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.