Home / 22,308.08-30,784.60-12,747.36

Finding the Fourth Proportional to 22,308.08, 30,784.60 and 12,747.36

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Solution

The fourth proportional to 22,308.08, 30,784.60 and 12,747.36 is: 17,591.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,308.08 : 30,784.60 = 12,747.36 : x
  2. Step 2: Convert to fraction form
    22,308.08/30,784.60 = 12,747.36/x
  3. Step 3: Cross multiply
    22,308.08x = 30,784.60 × 12,747.36
  4. Step 4: Simplify right side
    22,308.08x = 392,422,455.62
  5. Step 5: Solve for x
    x = 392,422,455.62/22,308.08
  6. Step 6: Final answer
    x = 17,591.04

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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.