Home / 31,260.84-43,128.32-19,927.73

Finding the Fourth Proportional to 31,260.84, 43,128.32 and 19,927.73

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Solution

The fourth proportional to 31,260.84, 43,128.32 and 19,927.73 is: 27,492.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,260.84 : 43,128.32 = 19,927.73 : x
  2. Step 2: Convert to fraction form
    31,260.84/43,128.32 = 19,927.73/x
  3. Step 3: Cross multiply
    31,260.84x = 43,128.32 × 19,927.73
  4. Step 4: Simplify right side
    31,260.84x = 859,449,201.03
  5. Step 5: Solve for x
    x = 859,449,201.03/31,260.84
  6. Step 6: Final answer
    x = 27,492.84

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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.