Home / 20,027.10-27,637.20-11,074.80

Finding the Fourth Proportional to 20,027.10, 27,637.20 and 11,074.80

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Solution

The fourth proportional to 20,027.10, 27,637.20 and 11,074.80 is: 15,283.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,027.10 : 27,637.20 = 11,074.80 : x
  2. Step 2: Convert to fraction form
    20,027.10/27,637.20 = 11,074.80/x
  3. Step 3: Cross multiply
    20,027.10x = 27,637.20 × 11,074.80
  4. Step 4: Simplify right side
    20,027.10x = 306,076,462.56
  5. Step 5: Solve for x
    x = 306,076,462.56/20,027.10
  6. Step 6: Final answer
    x = 15,283.11

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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.