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Finding the Fourth Proportional to 33,392, 46,082.40 and 18,488

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Solution

The fourth proportional to 33,392, 46,082.40 and 18,488 is: 25,514.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,392 : 46,082.40 = 18,488 : x
  2. Step 2: Convert to fraction form
    33,392/46,082.40 = 18,488/x
  3. Step 3: Cross multiply
    33,392x = 46,082.40 × 18,488
  4. Step 4: Simplify right side
    33,392x = 851,971,411.20
  5. Step 5: Solve for x
    x = 851,971,411.20/33,392
  6. Step 6: Final answer
    x = 25,514.24

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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.