Home / 20,126.52-30,190.86-6,275.52

Finding the Fourth Proportional to 20,126.52, 30,190.86 and 6,275.52

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Solution

The fourth proportional to 20,126.52, 30,190.86 and 6,275.52 is: 9,413.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.52 : 30,190.86 = 6,275.52 : x
  2. Step 2: Convert to fraction form
    20,126.52/30,190.86 = 6,275.52/x
  3. Step 3: Cross multiply
    20,126.52x = 30,190.86 × 6,275.52
  4. Step 4: Simplify right side
    20,126.52x = 189,463,345.75
  5. Step 5: Solve for x
    x = 189,463,345.75/20,126.52
  6. Step 6: Final answer
    x = 9,413.62

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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.