Home / 20,739.30-28,619.41-12,244.16

Finding the Fourth Proportional to 20,739.30, 28,619.41 and 12,244.16

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Solution

The fourth proportional to 20,739.30, 28,619.41 and 12,244.16 is: 16,896.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739.30 : 28,619.41 = 12,244.16 : x
  2. Step 2: Convert to fraction form
    20,739.30/28,619.41 = 12,244.16/x
  3. Step 3: Cross multiply
    20,739.30x = 28,619.41 × 12,244.16
  4. Step 4: Simplify right side
    20,739.30x = 350,420,635.15
  5. Step 5: Solve for x
    x = 350,420,635.15/20,739.30
  6. Step 6: Final answer
    x = 16,896.45

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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.