Home / 27,985.80-41,954.40-16,880.70

Finding the Fourth Proportional to 27,985.80, 41,954.40 and 16,880.70

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Solution

The fourth proportional to 27,985.80, 41,954.40 and 16,880.70 is: 25,306.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,985.80 : 41,954.40 = 16,880.70 : x
  2. Step 2: Convert to fraction form
    27,985.80/41,954.40 = 16,880.70/x
  3. Step 3: Cross multiply
    27,985.80x = 41,954.40 × 16,880.70
  4. Step 4: Simplify right side
    27,985.80x = 708,219,640.08
  5. Step 5: Solve for x
    x = 708,219,640.08/27,985.80
  6. Step 6: Final answer
    x = 25,306.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.