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Finding the Fourth Proportional to 33,820.47, 46,691.03 and 20,395.13

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Solution

The fourth proportional to 33,820.47, 46,691.03 and 20,395.13 is: 28,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,820.47 : 46,691.03 = 20,395.13 : x
  2. Step 2: Convert to fraction form
    33,820.47/46,691.03 = 20,395.13/x
  3. Step 3: Cross multiply
    33,820.47x = 46,691.03 × 20,395.13
  4. Step 4: Simplify right side
    33,820.47x = 952,269,444.22
  5. Step 5: Solve for x
    x = 952,269,444.22/33,820.47
  6. Step 6: Final answer
    x = 28,156.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.