Home / 19,920.07-27,491.01-11,536.57

Finding the Fourth Proportional to 19,920.07, 27,491.01 and 11,536.57

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Solution

The fourth proportional to 19,920.07, 27,491.01 and 11,536.57 is: 15,921.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.07 : 27,491.01 = 11,536.57 : x
  2. Step 2: Convert to fraction form
    19,920.07/27,491.01 = 11,536.57/x
  3. Step 3: Cross multiply
    19,920.07x = 27,491.01 × 11,536.57
  4. Step 4: Simplify right side
    19,920.07x = 317,151,961.24
  5. Step 5: Solve for x
    x = 317,151,961.24/19,920.07
  6. Step 6: Final answer
    x = 15,921.23

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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.