Home / 43,618.10-65,341.94-20,789.46

Finding the Fourth Proportional to 43,618.10, 65,341.94 and 20,789.46

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Solution

The fourth proportional to 43,618.10, 65,341.94 and 20,789.46 is: 31,143.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,618.10 : 65,341.94 = 20,789.46 : x
  2. Step 2: Convert to fraction form
    43,618.10/65,341.94 = 20,789.46/x
  3. Step 3: Cross multiply
    43,618.10x = 65,341.94 × 20,789.46
  4. Step 4: Simplify right side
    43,618.10x = 1,358,423,660.95
  5. Step 5: Solve for x
    x = 1,358,423,660.95/43,618.10
  6. Step 6: Final answer
    x = 31,143.58

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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.