Home / 20,525.56-28,317.28-11,571.02

Finding the Fourth Proportional to 20,525.56, 28,317.28 and 11,571.02

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Solution

The fourth proportional to 20,525.56, 28,317.28 and 11,571.02 is: 15,963.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,525.56 : 28,317.28 = 11,571.02 : x
  2. Step 2: Convert to fraction form
    20,525.56/28,317.28 = 11,571.02/x
  3. Step 3: Cross multiply
    20,525.56x = 28,317.28 × 11,571.02
  4. Step 4: Simplify right side
    20,525.56x = 327,659,813.23
  5. Step 5: Solve for x
    x = 327,659,813.23/20,525.56
  6. Step 6: Final answer
    x = 15,963.50

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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.