Home / 20,482.47-28,259.69-11,982.33

Finding the Fourth Proportional to 20,482.47, 28,259.69 and 11,982.33

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Solution

The fourth proportional to 20,482.47, 28,259.69 and 11,982.33 is: 16,532.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.47 : 28,259.69 = 11,982.33 : x
  2. Step 2: Convert to fraction form
    20,482.47/28,259.69 = 11,982.33/x
  3. Step 3: Cross multiply
    20,482.47x = 28,259.69 × 11,982.33
  4. Step 4: Simplify right side
    20,482.47x = 338,616,871.37
  5. Step 5: Solve for x
    x = 338,616,871.37/20,482.47
  6. Step 6: Final answer
    x = 16,532.03

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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.