Home / 20,693.38-28,556.87-11,262.01

Finding the Fourth Proportional to 20,693.38, 28,556.87 and 11,262.01

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Solution

The fourth proportional to 20,693.38, 28,556.87 and 11,262.01 is: 15,541.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693.38 : 28,556.87 = 11,262.01 : x
  2. Step 2: Convert to fraction form
    20,693.38/28,556.87 = 11,262.01/x
  3. Step 3: Cross multiply
    20,693.38x = 28,556.87 × 11,262.01
  4. Step 4: Simplify right side
    20,693.38x = 321,607,755.51
  5. Step 5: Solve for x
    x = 321,607,755.51/20,693.38
  6. Step 6: Final answer
    x = 15,541.58

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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.