Home / 20,271.35-27,974.21-11,319.01

Finding the Fourth Proportional to 20,271.35, 27,974.21 and 11,319.01

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Solution

The fourth proportional to 20,271.35, 27,974.21 and 11,319.01 is: 15,620.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271.35 : 27,974.21 = 11,319.01 : x
  2. Step 2: Convert to fraction form
    20,271.35/27,974.21 = 11,319.01/x
  3. Step 3: Cross multiply
    20,271.35x = 27,974.21 × 11,319.01
  4. Step 4: Simplify right side
    20,271.35x = 316,640,236.20
  5. Step 5: Solve for x
    x = 316,640,236.20/20,271.35
  6. Step 6: Final answer
    x = 15,620.08

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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.