Home / 28,320.90-42,413.04-22,377.12

Finding the Fourth Proportional to 28,320.90, 42,413.04 and 22,377.12

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Solution

The fourth proportional to 28,320.90, 42,413.04 and 22,377.12 is: 33,511.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.90 : 42,413.04 = 22,377.12 : x
  2. Step 2: Convert to fraction form
    28,320.90/42,413.04 = 22,377.12/x
  3. Step 3: Cross multiply
    28,320.90x = 42,413.04 × 22,377.12
  4. Step 4: Simplify right side
    28,320.90x = 949,081,685.64
  5. Step 5: Solve for x
    x = 949,081,685.64/28,320.90
  6. Step 6: Final answer
    x = 33,511.71

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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.