Home / 15,024.96-20,754.12-11,531.28

Finding the Fourth Proportional to 15,024.96, 20,754.12 and 11,531.28

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Solution

The fourth proportional to 15,024.96, 20,754.12 and 11,531.28 is: 15,928.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,024.96 : 20,754.12 = 11,531.28 : x
  2. Step 2: Convert to fraction form
    15,024.96/20,754.12 = 11,531.28/x
  3. Step 3: Cross multiply
    15,024.96x = 20,754.12 × 11,531.28
  4. Step 4: Simplify right side
    15,024.96x = 239,321,568.87
  5. Step 5: Solve for x
    x = 239,321,568.87/15,024.96
  6. Step 6: Final answer
    x = 15,928.27

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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.