Home / 20,698.56-28,564.17-11,267.19

Finding the Fourth Proportional to 20,698.56, 28,564.17 and 11,267.19

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Solution

The fourth proportional to 20,698.56, 28,564.17 and 11,267.19 is: 15,548.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.56 : 28,564.17 = 11,267.19 : x
  2. Step 2: Convert to fraction form
    20,698.56/28,564.17 = 11,267.19/x
  3. Step 3: Cross multiply
    20,698.56x = 28,564.17 × 11,267.19
  4. Step 4: Simplify right side
    20,698.56x = 321,837,930.58
  5. Step 5: Solve for x
    x = 321,837,930.58/20,698.56
  6. Step 6: Final answer
    x = 15,548.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.