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Finding the Fourth Proportional to 33,239, 45,869.82 and 18,335

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Solution

The fourth proportional to 33,239, 45,869.82 and 18,335 is: 25,302.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,239 : 45,869.82 = 18,335 : x
  2. Step 2: Convert to fraction form
    33,239/45,869.82 = 18,335/x
  3. Step 3: Cross multiply
    33,239x = 45,869.82 × 18,335
  4. Step 4: Simplify right side
    33,239x = 841,023,149.70
  5. Step 5: Solve for x
    x = 841,023,149.70/33,239
  6. Step 6: Final answer
    x = 25,302.30

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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.