Home / 20,413.20-30,632.07-8,726.43

Finding the Fourth Proportional to 20,413.20, 30,632.07 and 8,726.43

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Solution

The fourth proportional to 20,413.20, 30,632.07 and 8,726.43 is: 13,094.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,413.20 : 30,632.07 = 8,726.43 : x
  2. Step 2: Convert to fraction form
    20,413.20/30,632.07 = 8,726.43/x
  3. Step 3: Cross multiply
    20,413.20x = 30,632.07 × 8,726.43
  4. Step 4: Simplify right side
    20,413.20x = 267,308,614.61
  5. Step 5: Solve for x
    x = 267,308,614.61/20,413.20
  6. Step 6: Final answer
    x = 13,094.89

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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.