Home / 22,968.66-31,690.40-12,896.12

Finding the Fourth Proportional to 22,968.66, 31,690.40 and 12,896.12

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Solution

The fourth proportional to 22,968.66, 31,690.40 and 12,896.12 is: 17,793.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,968.66 : 31,690.40 = 12,896.12 : x
  2. Step 2: Convert to fraction form
    22,968.66/31,690.40 = 12,896.12/x
  3. Step 3: Cross multiply
    22,968.66x = 31,690.40 × 12,896.12
  4. Step 4: Simplify right side
    22,968.66x = 408,683,201.25
  5. Step 5: Solve for x
    x = 408,683,201.25/22,968.66
  6. Step 6: Final answer
    x = 17,793.08

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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.