Home / 20,288.00-27,998.74-11,335.53

Finding the Fourth Proportional to 20,288.00, 27,998.74 and 11,335.53

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Solution

The fourth proportional to 20,288.00, 27,998.74 and 11,335.53 is: 15,643.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288.00 : 27,998.74 = 11,335.53 : x
  2. Step 2: Convert to fraction form
    20,288.00/27,998.74 = 11,335.53/x
  3. Step 3: Cross multiply
    20,288.00x = 27,998.74 × 11,335.53
  4. Step 4: Simplify right side
    20,288.00x = 317,380,487.02
  5. Step 5: Solve for x
    x = 317,380,487.02/20,288.00
  6. Step 6: Final answer
    x = 15,643.75

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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.