Home / 21,166.38-31,755.74-9,476.87

Finding the Fourth Proportional to 21,166.38, 31,755.74 and 9,476.87

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Solution

The fourth proportional to 21,166.38, 31,755.74 and 9,476.87 is: 14,218.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,166.38 : 31,755.74 = 9,476.87 : x
  2. Step 2: Convert to fraction form
    21,166.38/31,755.74 = 9,476.87/x
  3. Step 3: Cross multiply
    21,166.38x = 31,755.74 × 9,476.87
  4. Step 4: Simplify right side
    21,166.38x = 300,944,813.57
  5. Step 5: Solve for x
    x = 300,944,813.57/21,166.38
  6. Step 6: Final answer
    x = 14,218.06

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1.5x scale

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.