Home / 43,420.80-65,097.18-18,464.70

Finding the Fourth Proportional to 43,420.80, 65,097.18 and 18,464.70

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Solution

The fourth proportional to 43,420.80, 65,097.18 and 18,464.70 is: 27,682.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,420.80 : 65,097.18 = 18,464.70 : x
  2. Step 2: Convert to fraction form
    43,420.80/65,097.18 = 18,464.70/x
  3. Step 3: Cross multiply
    43,420.80x = 65,097.18 × 18,464.70
  4. Step 4: Simplify right side
    43,420.80x = 1,201,999,899.55
  5. Step 5: Solve for x
    x = 1,201,999,899.55/43,420.80
  6. Step 6: Final answer
    x = 27,682.58

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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.