Home / 20,256.75-27,954.25-11,303.75

Finding the Fourth Proportional to 20,256.75, 27,954.25 and 11,303.75

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Solution

The fourth proportional to 20,256.75, 27,954.25 and 11,303.75 is: 15,599.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.75 : 27,954.25 = 11,303.75 : x
  2. Step 2: Convert to fraction form
    20,256.75/27,954.25 = 11,303.75/x
  3. Step 3: Cross multiply
    20,256.75x = 27,954.25 × 11,303.75
  4. Step 4: Simplify right side
    20,256.75x = 315,987,895.06
  5. Step 5: Solve for x
    x = 315,987,895.06/20,256.75
  6. Step 6: Final answer
    x = 15,599.14

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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.