Home / 20,650.09-30,986.49-10,798.06

Finding the Fourth Proportional to 20,650.09, 30,986.49 and 10,798.06

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Solution

The fourth proportional to 20,650.09, 30,986.49 and 10,798.06 is: 16,203.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650.09 : 30,986.49 = 10,798.06 : x
  2. Step 2: Convert to fraction form
    20,650.09/30,986.49 = 10,798.06/x
  3. Step 3: Cross multiply
    20,650.09x = 30,986.49 × 10,798.06
  4. Step 4: Simplify right side
    20,650.09x = 334,593,978.21
  5. Step 5: Solve for x
    x = 334,593,978.21/20,650.09
  6. Step 6: Final answer
    x = 16,203.03

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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.