Home / 19,520.60-26,910.43-13,921.88

Finding the Fourth Proportional to 19,520.60, 26,910.43 and 13,921.88

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Solution

The fourth proportional to 19,520.60, 26,910.43 and 13,921.88 is: 19,192.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520.60 : 26,910.43 = 13,921.88 : x
  2. Step 2: Convert to fraction form
    19,520.60/26,910.43 = 13,921.88/x
  3. Step 3: Cross multiply
    19,520.60x = 26,910.43 × 13,921.88
  4. Step 4: Simplify right side
    19,520.60x = 374,643,607.85
  5. Step 5: Solve for x
    x = 374,643,607.85/19,520.60
  6. Step 6: Final answer
    x = 19,192.22

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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.