Home / 28,849.78-39,813.90-16,274.50

Finding the Fourth Proportional to 28,849.78, 39,813.90 and 16,274.50

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Solution

The fourth proportional to 28,849.78, 39,813.90 and 16,274.50 is: 22,459.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,849.78 : 39,813.90 = 16,274.50 : x
  2. Step 2: Convert to fraction form
    28,849.78/39,813.90 = 16,274.50/x
  3. Step 3: Cross multiply
    28,849.78x = 39,813.90 × 16,274.50
  4. Step 4: Simplify right side
    28,849.78x = 647,951,315.55
  5. Step 5: Solve for x
    x = 647,951,315.55/28,849.78
  6. Step 6: Final answer
    x = 22,459.49

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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.