Home / 19,100.10-28,650.15-13,195.20

Finding the Fourth Proportional to 19,100.10, 28,650.15 and 13,195.20

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Solution

The fourth proportional to 19,100.10, 28,650.15 and 13,195.20 is: 19,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,100.10 : 28,650.15 = 13,195.20 : x
  2. Step 2: Convert to fraction form
    19,100.10/28,650.15 = 13,195.20/x
  3. Step 3: Cross multiply
    19,100.10x = 28,650.15 × 13,195.20
  4. Step 4: Simplify right side
    19,100.10x = 378,044,459.28
  5. Step 5: Solve for x
    x = 378,044,459.28/19,100.10
  6. Step 6: Final answer
    x = 19,792.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.