Home / 18,905.67-28,354.71-17,968.95

Finding the Fourth Proportional to 18,905.67, 28,354.71 and 17,968.95

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Solution

The fourth proportional to 18,905.67, 28,354.71 and 17,968.95 is: 26,949.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.67 : 28,354.71 = 17,968.95 : x
  2. Step 2: Convert to fraction form
    18,905.67/28,354.71 = 17,968.95/x
  3. Step 3: Cross multiply
    18,905.67x = 28,354.71 × 17,968.95
  4. Step 4: Simplify right side
    18,905.67x = 509,504,366.25
  5. Step 5: Solve for x
    x = 509,504,366.25/18,905.67
  6. Step 6: Final answer
    x = 26,949.82

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1.5x scale

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.