Home / 22,664.75-31,278.83-13,712.63

Finding the Fourth Proportional to 22,664.75, 31,278.83 and 13,712.63

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Solution

The fourth proportional to 22,664.75, 31,278.83 and 13,712.63 is: 18,924.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,664.75 : 31,278.83 = 13,712.63 : x
  2. Step 2: Convert to fraction form
    22,664.75/31,278.83 = 13,712.63/x
  3. Step 3: Cross multiply
    22,664.75x = 31,278.83 × 13,712.63
  4. Step 4: Simplify right side
    22,664.75x = 428,914,797.67
  5. Step 5: Solve for x
    x = 428,914,797.67/22,664.75
  6. Step 6: Final answer
    x = 18,924.32

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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.