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Finding the Fourth Proportional to 33,288.55, 45,932.07 and 19,678.79

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Solution

The fourth proportional to 33,288.55, 45,932.07 and 19,678.79 is: 27,153.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,288.55 : 45,932.07 = 19,678.79 : x
  2. Step 2: Convert to fraction form
    33,288.55/45,932.07 = 19,678.79/x
  3. Step 3: Cross multiply
    33,288.55x = 45,932.07 × 19,678.79
  4. Step 4: Simplify right side
    33,288.55x = 903,887,559.80
  5. Step 5: Solve for x
    x = 903,887,559.80/33,288.55
  6. Step 6: Final answer
    x = 27,153.11

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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.