Home / 21,954.38-30,288.77-14,404.87

Finding the Fourth Proportional to 21,954.38, 30,288.77 and 14,404.87

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Solution

The fourth proportional to 21,954.38, 30,288.77 and 14,404.87 is: 19,873.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,954.38 : 30,288.77 = 14,404.87 : x
  2. Step 2: Convert to fraction form
    21,954.38/30,288.77 = 14,404.87/x
  3. Step 3: Cross multiply
    21,954.38x = 30,288.77 × 14,404.87
  4. Step 4: Simplify right side
    21,954.38x = 436,305,814.16
  5. Step 5: Solve for x
    x = 436,305,814.16/21,954.38
  6. Step 6: Final answer
    x = 19,873.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.