Home / 23,122.16-31,908.66-12,511.79

Finding the Fourth Proportional to 23,122.16, 31,908.66 and 12,511.79

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Solution

The fourth proportional to 23,122.16, 31,908.66 and 12,511.79 is: 17,266.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,122.16 : 31,908.66 = 12,511.79 : x
  2. Step 2: Convert to fraction form
    23,122.16/31,908.66 = 12,511.79/x
  3. Step 3: Cross multiply
    23,122.16x = 31,908.66 × 12,511.79
  4. Step 4: Simplify right side
    23,122.16x = 399,234,413.22
  5. Step 5: Solve for x
    x = 399,234,413.22/23,122.16
  6. Step 6: Final answer
    x = 17,266.31

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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.