Home / 20,106.19-27,746.44-11,153.60

Finding the Fourth Proportional to 20,106.19, 27,746.44 and 11,153.60

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Solution

The fourth proportional to 20,106.19, 27,746.44 and 11,153.60 is: 15,391.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.19 : 27,746.44 = 11,153.60 : x
  2. Step 2: Convert to fraction form
    20,106.19/27,746.44 = 11,153.60/x
  3. Step 3: Cross multiply
    20,106.19x = 27,746.44 × 11,153.60
  4. Step 4: Simplify right side
    20,106.19x = 309,472,693.18
  5. Step 5: Solve for x
    x = 309,472,693.18/20,106.19
  6. Step 6: Final answer
    x = 15,391.91

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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.