Home / 20,837.07-28,764.54-13,293.54

Finding the Fourth Proportional to 20,837.07, 28,764.54 and 13,293.54

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Solution

The fourth proportional to 20,837.07, 28,764.54 and 13,293.54 is: 18,351.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,837.07 : 28,764.54 = 13,293.54 : x
  2. Step 2: Convert to fraction form
    20,837.07/28,764.54 = 13,293.54/x
  3. Step 3: Cross multiply
    20,837.07x = 28,764.54 × 13,293.54
  4. Step 4: Simplify right side
    20,837.07x = 382,382,563.07
  5. Step 5: Solve for x
    x = 382,382,563.07/20,837.07
  6. Step 6: Final answer
    x = 18,351.07

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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.