Home / 20,230.28-27,917.36-11,277.24

Finding the Fourth Proportional to 20,230.28, 27,917.36 and 11,277.24

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Solution

The fourth proportional to 20,230.28, 27,917.36 and 11,277.24 is: 15,562.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.28 : 27,917.36 = 11,277.24 : x
  2. Step 2: Convert to fraction form
    20,230.28/27,917.36 = 11,277.24/x
  3. Step 3: Cross multiply
    20,230.28x = 27,917.36 × 11,277.24
  4. Step 4: Simplify right side
    20,230.28x = 314,830,768.89
  5. Step 5: Solve for x
    x = 314,830,768.89/20,230.28
  6. Step 6: Final answer
    x = 15,562.35

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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.