Home / 19,068.10-28,619.86-13,736.80

Finding the Fourth Proportional to 19,068.10, 28,619.86 and 13,736.80

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Solution

The fourth proportional to 19,068.10, 28,619.86 and 13,736.80 is: 20,617.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,068.10 : 28,619.86 = 13,736.80 : x
  2. Step 2: Convert to fraction form
    19,068.10/28,619.86 = 13,736.80/x
  3. Step 3: Cross multiply
    19,068.10x = 28,619.86 × 13,736.80
  4. Step 4: Simplify right side
    19,068.10x = 393,145,292.85
  5. Step 5: Solve for x
    x = 393,145,292.85/19,068.10
  6. Step 6: Final answer
    x = 20,617.96

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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.