Home / 33,129.60-45,721.44-18,985.92

Finding the Fourth Proportional to 33,129.60, 45,721.44 and 18,985.92

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Solution

The fourth proportional to 33,129.60, 45,721.44 and 18,985.92 is: 26,202.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,129.60 : 45,721.44 = 18,985.92 : x
  2. Step 2: Convert to fraction form
    33,129.60/45,721.44 = 18,985.92/x
  3. Step 3: Cross multiply
    33,129.60x = 45,721.44 × 18,985.92
  4. Step 4: Simplify right side
    33,129.60x = 868,063,602.12
  5. Step 5: Solve for x
    x = 868,063,602.12/33,129.60
  6. Step 6: Final answer
    x = 26,202.06

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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.