Home / 28,897.13-43,284.38-18,866.43

Finding the Fourth Proportional to 28,897.13, 43,284.38 and 18,866.43

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Solution

The fourth proportional to 28,897.13, 43,284.38 and 18,866.43 is: 28,259.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,897.13 : 43,284.38 = 18,866.43 : x
  2. Step 2: Convert to fraction form
    28,897.13/43,284.38 = 18,866.43/x
  3. Step 3: Cross multiply
    28,897.13x = 43,284.38 × 18,866.43
  4. Step 4: Simplify right side
    28,897.13x = 816,621,631.03
  5. Step 5: Solve for x
    x = 816,621,631.03/28,897.13
  6. Step 6: Final answer
    x = 28,259.61

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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.