Home / 20,140.03-27,792.46-11,188.10

Finding the Fourth Proportional to 20,140.03, 27,792.46 and 11,188.10

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Solution

The fourth proportional to 20,140.03, 27,792.46 and 11,188.10 is: 15,439.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.03 : 27,792.46 = 11,188.10 : x
  2. Step 2: Convert to fraction form
    20,140.03/27,792.46 = 11,188.10/x
  3. Step 3: Cross multiply
    20,140.03x = 27,792.46 × 11,188.10
  4. Step 4: Simplify right side
    20,140.03x = 310,944,821.73
  5. Step 5: Solve for x
    x = 310,944,821.73/20,140.03
  6. Step 6: Final answer
    x = 15,439.14

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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.