Home / 43,321.52-64,981.81-13,738.57

Finding the Fourth Proportional to 43,321.52, 64,981.81 and 13,738.57

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Solution

The fourth proportional to 43,321.52, 64,981.81 and 13,738.57 is: 20,607.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,321.52 : 64,981.81 = 13,738.57 : x
  2. Step 2: Convert to fraction form
    43,321.52/64,981.81 = 13,738.57/x
  3. Step 3: Cross multiply
    43,321.52x = 64,981.81 × 13,738.57
  4. Step 4: Simplify right side
    43,321.52x = 892,757,000.13
  5. Step 5: Solve for x
    x = 892,757,000.13/43,321.52
  6. Step 6: Final answer
    x = 20,607.70

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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.