Home / 28,168.09-38,871.97-16,231.41

Finding the Fourth Proportional to 28,168.09, 38,871.97 and 16,231.41

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Solution

The fourth proportional to 28,168.09, 38,871.97 and 16,231.41 is: 22,399.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168.09 : 38,871.97 = 16,231.41 : x
  2. Step 2: Convert to fraction form
    28,168.09/38,871.97 = 16,231.41/x
  3. Step 3: Cross multiply
    28,168.09x = 38,871.97 × 16,231.41
  4. Step 4: Simplify right side
    28,168.09x = 630,946,842.00
  5. Step 5: Solve for x
    x = 630,946,842.00/28,168.09
  6. Step 6: Final answer
    x = 22,399.35

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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.