Home / 20,962.84-31,375.16-11,460.64

Finding the Fourth Proportional to 20,962.84, 31,375.16 and 11,460.64

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Solution

The fourth proportional to 20,962.84, 31,375.16 and 11,460.64 is: 17,153.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.84 : 31,375.16 = 11,460.64 : x
  2. Step 2: Convert to fraction form
    20,962.84/31,375.16 = 11,460.64/x
  3. Step 3: Cross multiply
    20,962.84x = 31,375.16 × 11,460.64
  4. Step 4: Simplify right side
    20,962.84x = 359,579,413.70
  5. Step 5: Solve for x
    x = 359,579,413.70/20,962.84
  6. Step 6: Final answer
    x = 17,153.18

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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.