Home / 43,306.60-64,911.30-18,342.40

Finding the Fourth Proportional to 43,306.60, 64,911.30 and 18,342.40

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Solution

The fourth proportional to 43,306.60, 64,911.30 and 18,342.40 is: 27,493.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,306.60 : 64,911.30 = 18,342.40 : x
  2. Step 2: Convert to fraction form
    43,306.60/64,911.30 = 18,342.40/x
  3. Step 3: Cross multiply
    43,306.60x = 64,911.30 × 18,342.40
  4. Step 4: Simplify right side
    43,306.60x = 1,190,629,029.12
  5. Step 5: Solve for x
    x = 1,190,629,029.12/43,306.60
  6. Step 6: Final answer
    x = 27,493.02

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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.