Home / 28,579.84-39,433.40-16,636

Finding the Fourth Proportional to 28,579.84, 39,433.40 and 16,636

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Solution

The fourth proportional to 28,579.84, 39,433.40 and 16,636 is: 22,953.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.84 : 39,433.40 = 16,636 : x
  2. Step 2: Convert to fraction form
    28,579.84/39,433.40 = 16,636/x
  3. Step 3: Cross multiply
    28,579.84x = 39,433.40 × 16,636
  4. Step 4: Simplify right side
    28,579.84x = 656,014,042.40
  5. Step 5: Solve for x
    x = 656,014,042.40/28,579.84
  6. Step 6: Final answer
    x = 22,953.73

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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.