Home / 20,884.39-31,332.37-9,643.17

Finding the Fourth Proportional to 20,884.39, 31,332.37 and 9,643.17

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Solution

The fourth proportional to 20,884.39, 31,332.37 and 9,643.17 is: 14,467.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,884.39 : 31,332.37 = 9,643.17 : x
  2. Step 2: Convert to fraction form
    20,884.39/31,332.37 = 9,643.17/x
  3. Step 3: Cross multiply
    20,884.39x = 31,332.37 × 9,643.17
  4. Step 4: Simplify right side
    20,884.39x = 302,143,213.75
  5. Step 5: Solve for x
    x = 302,143,213.75/20,884.39
  6. Step 6: Final answer
    x = 14,467.42

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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.