Home / 20,275.86-30,413.43-6,424.50

Finding the Fourth Proportional to 20,275.86, 30,413.43 and 6,424.50

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Solution

The fourth proportional to 20,275.86, 30,413.43 and 6,424.50 is: 9,636.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,275.86 : 30,413.43 = 6,424.50 : x
  2. Step 2: Convert to fraction form
    20,275.86/30,413.43 = 6,424.50/x
  3. Step 3: Cross multiply
    20,275.86x = 30,413.43 × 6,424.50
  4. Step 4: Simplify right side
    20,275.86x = 195,391,081.04
  5. Step 5: Solve for x
    x = 195,391,081.04/20,275.86
  6. Step 6: Final answer
    x = 9,636.64

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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.