Home / 28,161.30-38,858.25-16,222.30

Finding the Fourth Proportional to 28,161.30, 38,858.25 and 16,222.30

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Solution

The fourth proportional to 28,161.30, 38,858.25 and 16,222.30 is: 22,384.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161.30 : 38,858.25 = 16,222.30 : x
  2. Step 2: Convert to fraction form
    28,161.30/38,858.25 = 16,222.30/x
  3. Step 3: Cross multiply
    28,161.30x = 38,858.25 × 16,222.30
  4. Step 4: Simplify right side
    28,161.30x = 630,370,188.98
  5. Step 5: Solve for x
    x = 630,370,188.98/28,161.30
  6. Step 6: Final answer
    x = 22,384.27

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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.