Home / 42,691.11-64,039.75-16,395.86

Finding the Fourth Proportional to 42,691.11, 64,039.75 and 16,395.86

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Solution

The fourth proportional to 42,691.11, 64,039.75 and 16,395.86 is: 24,594.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,691.11 : 64,039.75 = 16,395.86 : x
  2. Step 2: Convert to fraction form
    42,691.11/64,039.75 = 16,395.86/x
  3. Step 3: Cross multiply
    42,691.11x = 64,039.75 × 16,395.86
  4. Step 4: Simplify right side
    42,691.11x = 1,049,986,409.68
  5. Step 5: Solve for x
    x = 1,049,986,409.68/42,691.11
  6. Step 6: Final answer
    x = 24,594.96

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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.