Home / 28,207.75-38,930.58-16,270.83

Finding the Fourth Proportional to 28,207.75, 38,930.58 and 16,270.83

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Solution

The fourth proportional to 28,207.75, 38,930.58 and 16,270.83 is: 22,455.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.75 : 38,930.58 = 16,270.83 : x
  2. Step 2: Convert to fraction form
    28,207.75/38,930.58 = 16,270.83/x
  3. Step 3: Cross multiply
    28,207.75x = 38,930.58 × 16,270.83
  4. Step 4: Simplify right side
    28,207.75x = 633,432,848.98
  5. Step 5: Solve for x
    x = 633,432,848.98/28,207.75
  6. Step 6: Final answer
    x = 22,455.99

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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.