Home / 20,694.36-28,557.28-11,262.92

Finding the Fourth Proportional to 20,694.36, 28,557.28 and 11,262.92

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Solution

The fourth proportional to 20,694.36, 28,557.28 and 11,262.92 is: 15,542.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.36 : 28,557.28 = 11,262.92 : x
  2. Step 2: Convert to fraction form
    20,694.36/28,557.28 = 11,262.92/x
  3. Step 3: Cross multiply
    20,694.36x = 28,557.28 × 11,262.92
  4. Step 4: Simplify right side
    20,694.36x = 321,638,360.06
  5. Step 5: Solve for x
    x = 321,638,360.06/20,694.36
  6. Step 6: Final answer
    x = 15,542.32

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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.