Home / 33,100.48-45,673.58-19,666.78

Finding the Fourth Proportional to 33,100.48, 45,673.58 and 19,666.78

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Solution

The fourth proportional to 33,100.48, 45,673.58 and 19,666.78 is: 27,137.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,100.48 : 45,673.58 = 19,666.78 : x
  2. Step 2: Convert to fraction form
    33,100.48/45,673.58 = 19,666.78/x
  3. Step 3: Cross multiply
    33,100.48x = 45,673.58 × 19,666.78
  4. Step 4: Simplify right side
    33,100.48x = 898,252,249.67
  5. Step 5: Solve for x
    x = 898,252,249.67/33,100.48
  6. Step 6: Final answer
    x = 27,137.14

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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.