Home / 20,754.77-28,641.49-11,323.33

Finding the Fourth Proportional to 20,754.77, 28,641.49 and 11,323.33

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Solution

The fourth proportional to 20,754.77, 28,641.49 and 11,323.33 is: 15,626.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,754.77 : 28,641.49 = 11,323.33 : x
  2. Step 2: Convert to fraction form
    20,754.77/28,641.49 = 11,323.33/x
  3. Step 3: Cross multiply
    20,754.77x = 28,641.49 × 11,323.33
  4. Step 4: Simplify right side
    20,754.77x = 324,316,986.35
  5. Step 5: Solve for x
    x = 324,316,986.35/20,754.77
  6. Step 6: Final answer
    x = 15,626.14

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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.