Home / 19,603.32-27,051.71-11,105.28

Finding the Fourth Proportional to 19,603.32, 27,051.71 and 11,105.28

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Solution

The fourth proportional to 19,603.32, 27,051.71 and 11,105.28 is: 15,324.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,603.32 : 27,051.71 = 11,105.28 : x
  2. Step 2: Convert to fraction form
    19,603.32/27,051.71 = 11,105.28/x
  3. Step 3: Cross multiply
    19,603.32x = 27,051.71 × 11,105.28
  4. Step 4: Simplify right side
    19,603.32x = 300,416,678.77
  5. Step 5: Solve for x
    x = 300,416,678.77/19,603.32
  6. Step 6: Final answer
    x = 15,324.79

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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.