Home / 22,718.75-31,351.54-12,647.18

Finding the Fourth Proportional to 22,718.75, 31,351.54 and 12,647.18

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Solution

The fourth proportional to 22,718.75, 31,351.54 and 12,647.18 is: 17,452.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,718.75 : 31,351.54 = 12,647.18 : x
  2. Step 2: Convert to fraction form
    22,718.75/31,351.54 = 12,647.18/x
  3. Step 3: Cross multiply
    22,718.75x = 31,351.54 × 12,647.18
  4. Step 4: Simplify right side
    22,718.75x = 396,508,349.66
  5. Step 5: Solve for x
    x = 396,508,349.66/22,718.75
  6. Step 6: Final answer
    x = 17,452.91

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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.