Home / 43,314.57-64,997.76-18,690.57

Finding the Fourth Proportional to 43,314.57, 64,997.76 and 18,690.57

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Solution

The fourth proportional to 43,314.57, 64,997.76 and 18,690.57 is: 28,047.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,314.57 : 64,997.76 = 18,690.57 : x
  2. Step 2: Convert to fraction form
    43,314.57/64,997.76 = 18,690.57/x
  3. Step 3: Cross multiply
    43,314.57x = 64,997.76 × 18,690.57
  4. Step 4: Simplify right side
    43,314.57x = 1,214,845,183.12
  5. Step 5: Solve for x
    x = 1,214,845,183.12/43,314.57
  6. Step 6: Final answer
    x = 28,047.03

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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.