Home / 13,828.63-20,742.91-11,042.25

Finding the Fourth Proportional to 13,828.63, 20,742.91 and 11,042.25

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Solution

The fourth proportional to 13,828.63, 20,742.91 and 11,042.25 is: 16,563.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.63 : 20,742.91 = 11,042.25 : x
  2. Step 2: Convert to fraction form
    13,828.63/20,742.91 = 11,042.25/x
  3. Step 3: Cross multiply
    13,828.63x = 20,742.91 × 11,042.25
  4. Step 4: Simplify right side
    13,828.63x = 229,048,397.95
  5. Step 5: Solve for x
    x = 229,048,397.95/13,828.63
  6. Step 6: Final answer
    x = 16,563.35

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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.