Home / 39,104.88-53,965.11-21,199.84

Finding the Fourth Proportional to 39,104.88, 53,965.11 and 21,199.84

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Solution

The fourth proportional to 39,104.88, 53,965.11 and 21,199.84 is: 29,255.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,104.88 : 53,965.11 = 21,199.84 : x
  2. Step 2: Convert to fraction form
    39,104.88/53,965.11 = 21,199.84/x
  3. Step 3: Cross multiply
    39,104.88x = 53,965.11 × 21,199.84
  4. Step 4: Simplify right side
    39,104.88x = 1,144,051,697.58
  5. Step 5: Solve for x
    x = 1,144,051,697.58/39,104.88
  6. Step 6: Final answer
    x = 29,255.98

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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.