Home / 20,066.06-27,700.20-12,906.38

Finding the Fourth Proportional to 20,066.06, 27,700.20 and 12,906.38

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Solution

The fourth proportional to 20,066.06, 27,700.20 and 12,906.38 is: 17,816.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,066.06 : 27,700.20 = 12,906.38 : x
  2. Step 2: Convert to fraction form
    20,066.06/27,700.20 = 12,906.38/x
  3. Step 3: Cross multiply
    20,066.06x = 27,700.20 × 12,906.38
  4. Step 4: Simplify right side
    20,066.06x = 357,509,307.28
  5. Step 5: Solve for x
    x = 357,509,307.28/20,066.06
  6. Step 6: Final answer
    x = 17,816.62

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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.