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Finding the Fourth Proportional to 63,015.12, 94,500.72 and 18,630

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Solution

The fourth proportional to 63,015.12, 94,500.72 and 18,630 is: 27,938.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,015.12 : 94,500.72 = 18,630 : x
  2. Step 2: Convert to fraction form
    63,015.12/94,500.72 = 18,630/x
  3. Step 3: Cross multiply
    63,015.12x = 94,500.72 × 18,630
  4. Step 4: Simplify right side
    63,015.12x = 1,760,548,413.60
  5. Step 5: Solve for x
    x = 1,760,548,413.60/63,015.12
  6. Step 6: Final answer
    x = 27,938.51

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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.