Home / 19,644.39-27,090.65-15,161.04

Finding the Fourth Proportional to 19,644.39, 27,090.65 and 15,161.04

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Solution

The fourth proportional to 19,644.39, 27,090.65 and 15,161.04 is: 20,907.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,644.39 : 27,090.65 = 15,161.04 : x
  2. Step 2: Convert to fraction form
    19,644.39/27,090.65 = 15,161.04/x
  3. Step 3: Cross multiply
    19,644.39x = 27,090.65 × 15,161.04
  4. Step 4: Simplify right side
    19,644.39x = 410,722,466.18
  5. Step 5: Solve for x
    x = 410,722,466.18/19,644.39
  6. Step 6: Final answer
    x = 20,907.88

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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.