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Finding the Fourth Proportional to 33,340.78, 45,992.91 and 19,907.74

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Solution

The fourth proportional to 33,340.78, 45,992.91 and 19,907.74 is: 27,462.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,340.78 : 45,992.91 = 19,907.74 : x
  2. Step 2: Convert to fraction form
    33,340.78/45,992.91 = 19,907.74/x
  3. Step 3: Cross multiply
    33,340.78x = 45,992.91 × 19,907.74
  4. Step 4: Simplify right side
    33,340.78x = 915,614,894.12
  5. Step 5: Solve for x
    x = 915,614,894.12/33,340.78
  6. Step 6: Final answer
    x = 27,462.31

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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.