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Finding the Fourth Proportional to 33,669.20, 50,503.72 and 9,978.58

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Solution

The fourth proportional to 33,669.20, 50,503.72 and 9,978.58 is: 14,967.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,669.20 : 50,503.72 = 9,978.58 : x
  2. Step 2: Convert to fraction form
    33,669.20/50,503.72 = 9,978.58/x
  3. Step 3: Cross multiply
    33,669.20x = 50,503.72 × 9,978.58
  4. Step 4: Simplify right side
    33,669.20x = 503,955,410.32
  5. Step 5: Solve for x
    x = 503,955,410.32/33,669.20
  6. Step 6: Final answer
    x = 14,967.85

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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.