Home / 28,789.88-39,730.10-16,214.63

Finding the Fourth Proportional to 28,789.88, 39,730.10 and 16,214.63

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Solution

The fourth proportional to 28,789.88, 39,730.10 and 16,214.63 is: 22,376.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789.88 : 39,730.10 = 16,214.63 : x
  2. Step 2: Convert to fraction form
    28,789.88/39,730.10 = 16,214.63/x
  3. Step 3: Cross multiply
    28,789.88x = 39,730.10 × 16,214.63
  4. Step 4: Simplify right side
    28,789.88x = 644,208,591.64
  5. Step 5: Solve for x
    x = 644,208,591.64/28,789.88
  6. Step 6: Final answer
    x = 22,376.22

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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.