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Finding the Fourth Proportional to 35,691.67, 49,260.61 and 20,581.63

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Solution

The fourth proportional to 35,691.67, 49,260.61 and 20,581.63 is: 28,406.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,691.67 : 49,260.61 = 20,581.63 : x
  2. Step 2: Convert to fraction form
    35,691.67/49,260.61 = 20,581.63/x
  3. Step 3: Cross multiply
    35,691.67x = 49,260.61 × 20,581.63
  4. Step 4: Simplify right side
    35,691.67x = 1,013,863,435.40
  5. Step 5: Solve for x
    x = 1,013,863,435.40/35,691.67
  6. Step 6: Final answer
    x = 28,406.16

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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.