Home / 21,827.38-30,119.36-12,265.06

Finding the Fourth Proportional to 21,827.38, 30,119.36 and 12,265.06

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Solution

The fourth proportional to 21,827.38, 30,119.36 and 12,265.06 is: 16,924.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,827.38 : 30,119.36 = 12,265.06 : x
  2. Step 2: Convert to fraction form
    21,827.38/30,119.36 = 12,265.06/x
  3. Step 3: Cross multiply
    21,827.38x = 30,119.36 × 12,265.06
  4. Step 4: Simplify right side
    21,827.38x = 369,415,757.56
  5. Step 5: Solve for x
    x = 369,415,757.56/21,827.38
  6. Step 6: Final answer
    x = 16,924.42

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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.