Home / 22,485.02-31,029.60-12,413.86

Finding the Fourth Proportional to 22,485.02, 31,029.60 and 12,413.86

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Solution

The fourth proportional to 22,485.02, 31,029.60 and 12,413.86 is: 17,131.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,485.02 : 31,029.60 = 12,413.86 : x
  2. Step 2: Convert to fraction form
    22,485.02/31,029.60 = 12,413.86/x
  3. Step 3: Cross multiply
    22,485.02x = 31,029.60 × 12,413.86
  4. Step 4: Simplify right side
    22,485.02x = 385,197,110.26
  5. Step 5: Solve for x
    x = 385,197,110.26/22,485.02
  6. Step 6: Final answer
    x = 17,131.28

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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.