Home / 19,823.92-27,357-11,209.60

Finding the Fourth Proportional to 19,823.92, 27,357 and 11,209.60

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Solution

The fourth proportional to 19,823.92, 27,357 and 11,209.60 is: 15,469.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,823.92 : 27,357 = 11,209.60 : x
  2. Step 2: Convert to fraction form
    19,823.92/27,357 = 11,209.60/x
  3. Step 3: Cross multiply
    19,823.92x = 27,357 × 11,209.60
  4. Step 4: Simplify right side
    19,823.92x = 306,661,027.20
  5. Step 5: Solve for x
    x = 306,661,027.20/19,823.92
  6. Step 6: Final answer
    x = 15,469.24

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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.