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Finding the Fourth Proportional to 43,999.20, 65,998.80 and 12,834.45

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Solution

The fourth proportional to 43,999.20, 65,998.80 and 12,834.45 is: 19,251.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,999.20 : 65,998.80 = 12,834.45 : x
  2. Step 2: Convert to fraction form
    43,999.20/65,998.80 = 12,834.45/x
  3. Step 3: Cross multiply
    43,999.20x = 65,998.80 × 12,834.45
  4. Step 4: Simplify right side
    43,999.20x = 847,058,298.66
  5. Step 5: Solve for x
    x = 847,058,298.66/43,999.20
  6. Step 6: Final answer
    x = 19,251.68

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1.5x scale

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.