Home / 33,129.42-45,702.51-19,691.15

Finding the Fourth Proportional to 33,129.42, 45,702.51 and 19,691.15

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Solution

The fourth proportional to 33,129.42, 45,702.51 and 19,691.15 is: 27,164.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,129.42 : 45,702.51 = 19,691.15 : x
  2. Step 2: Convert to fraction form
    33,129.42/45,702.51 = 19,691.15/x
  3. Step 3: Cross multiply
    33,129.42x = 45,702.51 × 19,691.15
  4. Step 4: Simplify right side
    33,129.42x = 899,934,751.27
  5. Step 5: Solve for x
    x = 899,934,751.27/33,129.42
  6. Step 6: Final answer
    x = 27,164.22

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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.