Home / 20,290.06-27,997.02-11,337.10

Finding the Fourth Proportional to 20,290.06, 27,997.02 and 11,337.10

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Solution

The fourth proportional to 20,290.06, 27,997.02 and 11,337.10 is: 15,643.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,290.06 : 27,997.02 = 11,337.10 : x
  2. Step 2: Convert to fraction form
    20,290.06/27,997.02 = 11,337.10/x
  3. Step 3: Cross multiply
    20,290.06x = 27,997.02 × 11,337.10
  4. Step 4: Simplify right side
    20,290.06x = 317,405,015.44
  5. Step 5: Solve for x
    x = 317,405,015.44/20,290.06
  6. Step 6: Final answer
    x = 15,643.37

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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.