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Finding the Fourth Proportional to 33,261.60, 49,899.60 and 9,890.40

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Solution

The fourth proportional to 33,261.60, 49,899.60 and 9,890.40 is: 14,837.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,261.60 : 49,899.60 = 9,890.40 : x
  2. Step 2: Convert to fraction form
    33,261.60/49,899.60 = 9,890.40/x
  3. Step 3: Cross multiply
    33,261.60x = 49,899.60 × 9,890.40
  4. Step 4: Simplify right side
    33,261.60x = 493,527,003.84
  5. Step 5: Solve for x
    x = 493,527,003.84/33,261.60
  6. Step 6: Final answer
    x = 14,837.74

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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.