Home / 19,968.28-29,952.54-8,872.36

Finding the Fourth Proportional to 19,968.28, 29,952.54 and 8,872.36

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Solution

The fourth proportional to 19,968.28, 29,952.54 and 8,872.36 is: 13,308.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,968.28 : 29,952.54 = 8,872.36 : x
  2. Step 2: Convert to fraction form
    19,968.28/29,952.54 = 8,872.36/x
  3. Step 3: Cross multiply
    19,968.28x = 29,952.54 × 8,872.36
  4. Step 4: Simplify right side
    19,968.28x = 265,749,717.79
  5. Step 5: Solve for x
    x = 265,749,717.79/19,968.28
  6. Step 6: Final answer
    x = 13,308.59

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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.