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Finding the Fourth Proportional to 22,538.88, 33,788.48 and 8,678.40

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Solution

The fourth proportional to 22,538.88, 33,788.48 and 8,678.40 is: 13,009.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,538.88 : 33,788.48 = 8,678.40 : x
  2. Step 2: Convert to fraction form
    22,538.88/33,788.48 = 8,678.40/x
  3. Step 3: Cross multiply
    22,538.88x = 33,788.48 × 8,678.40
  4. Step 4: Simplify right side
    22,538.88x = 293,229,944.83
  5. Step 5: Solve for x
    x = 293,229,944.83/22,538.88
  6. Step 6: Final answer
    x = 13,009.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.