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Finding the Fourth Proportional to 30,352.84, 41,883.54 and 18,419.08

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Solution

The fourth proportional to 30,352.84, 41,883.54 and 18,419.08 is: 25,416.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,352.84 : 41,883.54 = 18,419.08 : x
  2. Step 2: Convert to fraction form
    30,352.84/41,883.54 = 18,419.08/x
  3. Step 3: Cross multiply
    30,352.84x = 41,883.54 × 18,419.08
  4. Step 4: Simplify right side
    30,352.84x = 771,456,273.94
  5. Step 5: Solve for x
    x = 771,456,273.94/30,352.84
  6. Step 6: Final answer
    x = 25,416.28

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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.