Home / 35,518.20-49,013.71-20,413.32

Finding the Fourth Proportional to 35,518.20, 49,013.71 and 20,413.32

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Solution

The fourth proportional to 35,518.20, 49,013.71 and 20,413.32 is: 28,169.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,518.20 : 49,013.71 = 20,413.32 : x
  2. Step 2: Convert to fraction form
    35,518.20/49,013.71 = 20,413.32/x
  3. Step 3: Cross multiply
    35,518.20x = 49,013.71 × 20,413.32
  4. Step 4: Simplify right side
    35,518.20x = 1,000,532,311.78
  5. Step 5: Solve for x
    x = 1,000,532,311.78/35,518.20
  6. Step 6: Final answer
    x = 28,169.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.