Home / 20,117.00-27,761.48-11,164.52

Finding the Fourth Proportional to 20,117.00, 27,761.48 and 11,164.52

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Solution

The fourth proportional to 20,117.00, 27,761.48 and 11,164.52 is: 15,407.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.00 : 27,761.48 = 11,164.52 : x
  2. Step 2: Convert to fraction form
    20,117.00/27,761.48 = 11,164.52/x
  3. Step 3: Cross multiply
    20,117.00x = 27,761.48 × 11,164.52
  4. Step 4: Simplify right side
    20,117.00x = 309,943,487.79
  5. Step 5: Solve for x
    x = 309,943,487.79/20,117.00
  6. Step 6: Final answer
    x = 15,407.04

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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.