Home / 19,921.74-27,485.91-11,536.62

Finding the Fourth Proportional to 19,921.74, 27,485.91 and 11,536.62

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Solution

The fourth proportional to 19,921.74, 27,485.91 and 11,536.62 is: 15,917.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.74 : 27,485.91 = 11,536.62 : x
  2. Step 2: Convert to fraction form
    19,921.74/27,485.91 = 11,536.62/x
  3. Step 3: Cross multiply
    19,921.74x = 27,485.91 × 11,536.62
  4. Step 4: Simplify right side
    19,921.74x = 317,094,499.02
  5. Step 5: Solve for x
    x = 317,094,499.02/19,921.74
  6. Step 6: Final answer
    x = 15,917.01

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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.