Home / 33,345.78-45,999.81-19,912.74

Finding the Fourth Proportional to 33,345.78, 45,999.81 and 19,912.74

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Solution

The fourth proportional to 33,345.78, 45,999.81 and 19,912.74 is: 27,469.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,345.78 : 45,999.81 = 19,912.74 : x
  2. Step 2: Convert to fraction form
    33,345.78/45,999.81 = 19,912.74/x
  3. Step 3: Cross multiply
    33,345.78x = 45,999.81 × 19,912.74
  4. Step 4: Simplify right side
    33,345.78x = 915,982,256.58
  5. Step 5: Solve for x
    x = 915,982,256.58/33,345.78
  6. Step 6: Final answer
    x = 27,469.21

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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.