Home / 28,889.43-39,863.40-16,141.02

Finding the Fourth Proportional to 28,889.43, 39,863.40 and 16,141.02

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Solution

The fourth proportional to 28,889.43, 39,863.40 and 16,141.02 is: 22,272.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,889.43 : 39,863.40 = 16,141.02 : x
  2. Step 2: Convert to fraction form
    28,889.43/39,863.40 = 16,141.02/x
  3. Step 3: Cross multiply
    28,889.43x = 39,863.40 × 16,141.02
  4. Step 4: Simplify right side
    28,889.43x = 643,435,936.67
  5. Step 5: Solve for x
    x = 643,435,936.67/28,889.43
  6. Step 6: Final answer
    x = 22,272.37

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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.