Home / 21,269.39-31,921.10-9,583.52

Finding the Fourth Proportional to 21,269.39, 31,921.10 and 9,583.52

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Solution

The fourth proportional to 21,269.39, 31,921.10 and 9,583.52 is: 14,382.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.39 : 31,921.10 = 9,583.52 : x
  2. Step 2: Convert to fraction form
    21,269.39/31,921.10 = 9,583.52/x
  3. Step 3: Cross multiply
    21,269.39x = 31,921.10 × 9,583.52
  4. Step 4: Simplify right side
    21,269.39x = 305,916,452.35
  5. Step 5: Solve for x
    x = 305,916,452.35/21,269.39
  6. Step 6: Final answer
    x = 14,382.94

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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.