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Finding the Fourth Proportional to 40,653.73, 60,982.64 and 12,953.89

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Solution

The fourth proportional to 40,653.73, 60,982.64 and 12,953.89 is: 19,431.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,653.73 : 60,982.64 = 12,953.89 : x
  2. Step 2: Convert to fraction form
    40,653.73/60,982.64 = 12,953.89/x
  3. Step 3: Cross multiply
    40,653.73x = 60,982.64 × 12,953.89
  4. Step 4: Simplify right side
    40,653.73x = 789,962,410.47
  5. Step 5: Solve for x
    x = 789,962,410.47/40,653.73
  6. Step 6: Final answer
    x = 19,431.49

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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.