Home / 19,931.86-29,880.82-8,832.49

Finding the Fourth Proportional to 19,931.86, 29,880.82 and 8,832.49

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Solution

The fourth proportional to 19,931.86, 29,880.82 and 8,832.49 is: 13,241.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.86 : 29,880.82 = 8,832.49 : x
  2. Step 2: Convert to fraction form
    19,931.86/29,880.82 = 8,832.49/x
  3. Step 3: Cross multiply
    19,931.86x = 29,880.82 × 8,832.49
  4. Step 4: Simplify right side
    19,931.86x = 263,922,043.84
  5. Step 5: Solve for x
    x = 263,922,043.84/19,931.86
  6. Step 6: Final answer
    x = 13,241.22

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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.