Home / 19,419.70-29,062.62-11,918.28

Finding the Fourth Proportional to 19,419.70, 29,062.62 and 11,918.28

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Solution

The fourth proportional to 19,419.70, 29,062.62 and 11,918.28 is: 17,836.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.70 : 29,062.62 = 11,918.28 : x
  2. Step 2: Convert to fraction form
    19,419.70/29,062.62 = 11,918.28/x
  3. Step 3: Cross multiply
    19,419.70x = 29,062.62 × 11,918.28
  4. Step 4: Simplify right side
    19,419.70x = 346,376,442.69
  5. Step 5: Solve for x
    x = 346,376,442.69/19,419.70
  6. Step 6: Final answer
    x = 17,836.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.