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Finding the Fourth Proportional to 30,019.37, 44,979.72 and 10,287.15

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Solution

The fourth proportional to 30,019.37, 44,979.72 and 10,287.15 is: 15,413.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,019.37 : 44,979.72 = 10,287.15 : x
  2. Step 2: Convert to fraction form
    30,019.37/44,979.72 = 10,287.15/x
  3. Step 3: Cross multiply
    30,019.37x = 44,979.72 × 10,287.15
  4. Step 4: Simplify right side
    30,019.37x = 462,713,126.60
  5. Step 5: Solve for x
    x = 462,713,126.60/30,019.37
  6. Step 6: Final answer
    x = 15,413.82

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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.