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Finding the Fourth Proportional to 19,241.56, 28,836.83 and 9,881.20

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Solution

The fourth proportional to 19,241.56, 28,836.83 and 9,881.20 is: 14,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,241.56 : 28,836.83 = 9,881.20 : x
  2. Step 2: Convert to fraction form
    19,241.56/28,836.83 = 9,881.20/x
  3. Step 3: Cross multiply
    19,241.56x = 28,836.83 × 9,881.20
  4. Step 4: Simplify right side
    19,241.56x = 284,942,435.19
  5. Step 5: Solve for x
    x = 284,942,435.19/19,241.56
  6. Step 6: Final answer
    x = 14,808.70

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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.