Home / 22,455.36-30,987.86-12,383.60

Finding the Fourth Proportional to 22,455.36, 30,987.86 and 12,383.60

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Solution

The fourth proportional to 22,455.36, 30,987.86 and 12,383.60 is: 17,089.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,455.36 : 30,987.86 = 12,383.60 : x
  2. Step 2: Convert to fraction form
    22,455.36/30,987.86 = 12,383.60/x
  3. Step 3: Cross multiply
    22,455.36x = 30,987.86 × 12,383.60
  4. Step 4: Simplify right side
    22,455.36x = 383,741,046.24
  5. Step 5: Solve for x
    x = 383,741,046.24/22,455.36
  6. Step 6: Final answer
    x = 17,089.06

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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.