Home / 43,583.85-65,378.10-13,999.38

Finding the Fourth Proportional to 43,583.85, 65,378.10 and 13,999.38

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Solution

The fourth proportional to 43,583.85, 65,378.10 and 13,999.38 is: 20,999.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,583.85 : 65,378.10 = 13,999.38 : x
  2. Step 2: Convert to fraction form
    43,583.85/65,378.10 = 13,999.38/x
  3. Step 3: Cross multiply
    43,583.85x = 65,378.10 × 13,999.38
  4. Step 4: Simplify right side
    43,583.85x = 915,252,865.58
  5. Step 5: Solve for x
    x = 915,252,865.58/43,583.85
  6. Step 6: Final answer
    x = 20,999.82

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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.