Home / 22,308.35-30,788.10-13,355.85

Finding the Fourth Proportional to 22,308.35, 30,788.10 and 13,355.85

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Solution

The fourth proportional to 22,308.35, 30,788.10 and 13,355.85 is: 18,432.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,308.35 : 30,788.10 = 13,355.85 : x
  2. Step 2: Convert to fraction form
    22,308.35/30,788.10 = 13,355.85/x
  3. Step 3: Cross multiply
    22,308.35x = 30,788.10 × 13,355.85
  4. Step 4: Simplify right side
    22,308.35x = 411,201,245.39
  5. Step 5: Solve for x
    x = 411,201,245.39/22,308.35
  6. Step 6: Final answer
    x = 18,432.62

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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.