Home / 30,137.12-41,577.36-18,800

Finding the Fourth Proportional to 30,137.12, 41,577.36 and 18,800

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Solution

The fourth proportional to 30,137.12, 41,577.36 and 18,800 is: 25,936.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,137.12 : 41,577.36 = 18,800 : x
  2. Step 2: Convert to fraction form
    30,137.12/41,577.36 = 18,800/x
  3. Step 3: Cross multiply
    30,137.12x = 41,577.36 × 18,800
  4. Step 4: Simplify right side
    30,137.12x = 781,654,368
  5. Step 5: Solve for x
    x = 781,654,368/30,137.12
  6. Step 6: Final answer
    x = 25,936.60

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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.