Home / 28,656.26-42,973.46-11,121.98

Finding the Fourth Proportional to 28,656.26, 42,973.46 and 11,121.98

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Solution

The fourth proportional to 28,656.26, 42,973.46 and 11,121.98 is: 16,678.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656.26 : 42,973.46 = 11,121.98 : x
  2. Step 2: Convert to fraction form
    28,656.26/42,973.46 = 11,121.98/x
  3. Step 3: Cross multiply
    28,656.26x = 42,973.46 × 11,121.98
  4. Step 4: Simplify right side
    28,656.26x = 477,949,907.04
  5. Step 5: Solve for x
    x = 477,949,907.04/28,656.26
  6. Step 6: Final answer
    x = 16,678.73

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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.