Home / 20,519.37-28,316.73-11,087.94

Finding the Fourth Proportional to 20,519.37, 28,316.73 and 11,087.94

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Solution

The fourth proportional to 20,519.37, 28,316.73 and 11,087.94 is: 15,301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,519.37 : 28,316.73 = 11,087.94 : x
  2. Step 2: Convert to fraction form
    20,519.37/28,316.73 = 11,087.94/x
  3. Step 3: Cross multiply
    20,519.37x = 28,316.73 × 11,087.94
  4. Step 4: Simplify right side
    20,519.37x = 313,974,203.24
  5. Step 5: Solve for x
    x = 313,974,203.24/20,519.37
  6. Step 6: Final answer
    x = 15,301.36

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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.