Home / 19,411.70-29,117.55-13,190.90

Finding the Fourth Proportional to 19,411.70, 29,117.55 and 13,190.90

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Solution

The fourth proportional to 19,411.70, 29,117.55 and 13,190.90 is: 19,786.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,411.70 : 29,117.55 = 13,190.90 : x
  2. Step 2: Convert to fraction form
    19,411.70/29,117.55 = 13,190.90/x
  3. Step 3: Cross multiply
    19,411.70x = 29,117.55 × 13,190.90
  4. Step 4: Simplify right side
    19,411.70x = 384,086,690.30
  5. Step 5: Solve for x
    x = 384,086,690.30/19,411.70
  6. Step 6: Final answer
    x = 19,786.35

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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.