Home / 27,997.85-38,637.03-15,422.60

Finding the Fourth Proportional to 27,997.85, 38,637.03 and 15,422.60

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Solution

The fourth proportional to 27,997.85, 38,637.03 and 15,422.60 is: 21,283.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,997.85 : 38,637.03 = 15,422.60 : x
  2. Step 2: Convert to fraction form
    27,997.85/38,637.03 = 15,422.60/x
  3. Step 3: Cross multiply
    27,997.85x = 38,637.03 × 15,422.60
  4. Step 4: Simplify right side
    27,997.85x = 595,883,458.88
  5. Step 5: Solve for x
    x = 595,883,458.88/27,997.85
  6. Step 6: Final answer
    x = 21,283.19

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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.