Home / 19,945.18-27,522.12-11,445.04

Finding the Fourth Proportional to 19,945.18, 27,522.12 and 11,445.04

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Solution

The fourth proportional to 19,945.18, 27,522.12 and 11,445.04 is: 15,792.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,945.18 : 27,522.12 = 11,445.04 : x
  2. Step 2: Convert to fraction form
    19,945.18/27,522.12 = 11,445.04/x
  3. Step 3: Cross multiply
    19,945.18x = 27,522.12 × 11,445.04
  4. Step 4: Simplify right side
    19,945.18x = 314,991,764.28
  5. Step 5: Solve for x
    x = 314,991,764.28/19,945.18
  6. Step 6: Final answer
    x = 15,792.88

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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.