Home / 20,017.10-27,644.82-15,227.58

Finding the Fourth Proportional to 20,017.10, 27,644.82 and 15,227.58

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Solution

The fourth proportional to 20,017.10, 27,644.82 and 15,227.58 is: 21,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,017.10 : 27,644.82 = 15,227.58 : x
  2. Step 2: Convert to fraction form
    20,017.10/27,644.82 = 15,227.58/x
  3. Step 3: Cross multiply
    20,017.10x = 27,644.82 × 15,227.58
  4. Step 4: Simplify right side
    20,017.10x = 420,963,708.14
  5. Step 5: Solve for x
    x = 420,963,708.14/20,017.10
  6. Step 6: Final answer
    x = 21,030.20

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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.