Home / 28,788.18-39,730.60-16,043.43

Finding the Fourth Proportional to 28,788.18, 39,730.60 and 16,043.43

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Solution

The fourth proportional to 28,788.18, 39,730.60 and 16,043.43 is: 22,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788.18 : 39,730.60 = 16,043.43 : x
  2. Step 2: Convert to fraction form
    28,788.18/39,730.60 = 16,043.43/x
  3. Step 3: Cross multiply
    28,788.18x = 39,730.60 × 16,043.43
  4. Step 4: Simplify right side
    28,788.18x = 637,415,269.00
  5. Step 5: Solve for x
    x = 637,415,269.00/28,788.18
  6. Step 6: Final answer
    x = 22,141.56

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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.