Home / 20,413.40-30,614.02-7,935.36

Finding the Fourth Proportional to 20,413.40, 30,614.02 and 7,935.36

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Solution

The fourth proportional to 20,413.40, 30,614.02 and 7,935.36 is: 11,900.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,413.40 : 30,614.02 = 7,935.36 : x
  2. Step 2: Convert to fraction form
    20,413.40/30,614.02 = 7,935.36/x
  3. Step 3: Cross multiply
    20,413.40x = 30,614.02 × 7,935.36
  4. Step 4: Simplify right side
    20,413.40x = 242,933,269.75
  5. Step 5: Solve for x
    x = 242,933,269.75/20,413.40
  6. Step 6: Final answer
    x = 11,900.68

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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.