Home / 30,619.92-45,918.08-11,897.50

Finding the Fourth Proportional to 30,619.92, 45,918.08 and 11,897.50

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Solution

The fourth proportional to 30,619.92, 45,918.08 and 11,897.50 is: 17,841.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619.92 : 45,918.08 = 11,897.50 : x
  2. Step 2: Convert to fraction form
    30,619.92/45,918.08 = 11,897.50/x
  3. Step 3: Cross multiply
    30,619.92x = 45,918.08 × 11,897.50
  4. Step 4: Simplify right side
    30,619.92x = 546,310,067.72
  5. Step 5: Solve for x
    x = 546,310,067.72/30,619.92
  6. Step 6: Final answer
    x = 17,841.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.