Home / 28,165.74-38,857.35-16,222.69

Finding the Fourth Proportional to 28,165.74, 38,857.35 and 16,222.69

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Solution

The fourth proportional to 28,165.74, 38,857.35 and 16,222.69 is: 22,380.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165.74 : 38,857.35 = 16,222.69 : x
  2. Step 2: Convert to fraction form
    28,165.74/38,857.35 = 16,222.69/x
  3. Step 3: Cross multiply
    28,165.74x = 38,857.35 × 16,222.69
  4. Step 4: Simplify right side
    28,165.74x = 630,370,743.27
  5. Step 5: Solve for x
    x = 630,370,743.27/28,165.74
  6. Step 6: Final answer
    x = 22,380.76

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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.