Home / 19,419.36-29,123.73-5,376.03

Finding the Fourth Proportional to 19,419.36, 29,123.73 and 5,376.03

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Solution

The fourth proportional to 19,419.36, 29,123.73 and 5,376.03 is: 8,062.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.36 : 29,123.73 = 5,376.03 : x
  2. Step 2: Convert to fraction form
    19,419.36/29,123.73 = 5,376.03/x
  3. Step 3: Cross multiply
    19,419.36x = 29,123.73 × 5,376.03
  4. Step 4: Simplify right side
    19,419.36x = 156,570,046.19
  5. Step 5: Solve for x
    x = 156,570,046.19/19,419.36
  6. Step 6: Final answer
    x = 8,062.57

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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.