Home / 28,872.64-39,829.08-18,243.82

Finding the Fourth Proportional to 28,872.64, 39,829.08 and 18,243.82

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Solution

The fourth proportional to 28,872.64, 39,829.08 and 18,243.82 is: 25,166.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,872.64 : 39,829.08 = 18,243.82 : x
  2. Step 2: Convert to fraction form
    28,872.64/39,829.08 = 18,243.82/x
  3. Step 3: Cross multiply
    28,872.64x = 39,829.08 × 18,243.82
  4. Step 4: Simplify right side
    28,872.64x = 726,634,566.29
  5. Step 5: Solve for x
    x = 726,634,566.29/28,872.64
  6. Step 6: Final answer
    x = 25,166.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.