Home / 43,939.46-65,920.43-12,774.71

Finding the Fourth Proportional to 43,939.46, 65,920.43 and 12,774.71

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Solution

The fourth proportional to 43,939.46, 65,920.43 and 12,774.71 is: 19,165.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,939.46 : 65,920.43 = 12,774.71 : x
  2. Step 2: Convert to fraction form
    43,939.46/65,920.43 = 12,774.71/x
  3. Step 3: Cross multiply
    43,939.46x = 65,920.43 × 12,774.71
  4. Step 4: Simplify right side
    43,939.46x = 842,114,376.33
  5. Step 5: Solve for x
    x = 842,114,376.33/43,939.46
  6. Step 6: Final answer
    x = 19,165.33

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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.