Home / 28,413.02-42,514.31-20,922.12

Finding the Fourth Proportional to 28,413.02, 42,514.31 and 20,922.12

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Solution

The fourth proportional to 28,413.02, 42,514.31 and 20,922.12 is: 31,305.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.02 : 42,514.31 = 20,922.12 : x
  2. Step 2: Convert to fraction form
    28,413.02/42,514.31 = 20,922.12/x
  3. Step 3: Cross multiply
    28,413.02x = 42,514.31 × 20,922.12
  4. Step 4: Simplify right side
    28,413.02x = 889,489,390.93
  5. Step 5: Solve for x
    x = 889,489,390.93/28,413.02
  6. Step 6: Final answer
    x = 31,305.70

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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.