Home / 20,665.68-30,999.33-10,798.26

Finding the Fourth Proportional to 20,665.68, 30,999.33 and 10,798.26

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Solution

The fourth proportional to 20,665.68, 30,999.33 and 10,798.26 is: 16,197.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,665.68 : 30,999.33 = 10,798.26 : x
  2. Step 2: Convert to fraction form
    20,665.68/30,999.33 = 10,798.26/x
  3. Step 3: Cross multiply
    20,665.68x = 30,999.33 × 10,798.26
  4. Step 4: Simplify right side
    20,665.68x = 334,738,825.17
  5. Step 5: Solve for x
    x = 334,738,825.17/20,665.68
  6. Step 6: Final answer
    x = 16,197.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.