Home / 28,413.56-42,622.32-8,690.60

Finding the Fourth Proportional to 28,413.56, 42,622.32 and 8,690.60

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Solution

The fourth proportional to 28,413.56, 42,622.32 and 8,690.60 is: 13,036.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.56 : 42,622.32 = 8,690.60 : x
  2. Step 2: Convert to fraction form
    28,413.56/42,622.32 = 8,690.60/x
  3. Step 3: Cross multiply
    28,413.56x = 42,622.32 × 8,690.60
  4. Step 4: Simplify right side
    28,413.56x = 370,413,534.19
  5. Step 5: Solve for x
    x = 370,413,534.19/28,413.56
  6. Step 6: Final answer
    x = 13,036.51

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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.