Home / 43,198.86-64,704.52-20,965.51

Finding the Fourth Proportional to 43,198.86, 64,704.52 and 20,965.51

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Solution

The fourth proportional to 43,198.86, 64,704.52 and 20,965.51 is: 31,402.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,198.86 : 64,704.52 = 20,965.51 : x
  2. Step 2: Convert to fraction form
    43,198.86/64,704.52 = 20,965.51/x
  3. Step 3: Cross multiply
    43,198.86x = 64,704.52 × 20,965.51
  4. Step 4: Simplify right side
    43,198.86x = 1,356,563,261.11
  5. Step 5: Solve for x
    x = 1,356,563,261.11/43,198.86
  6. Step 6: Final answer
    x = 31,402.76

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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.