Home / 28,222.98-38,949.47-15,647.73

Finding the Fourth Proportional to 28,222.98, 38,949.47 and 15,647.73

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Solution

The fourth proportional to 28,222.98, 38,949.47 and 15,647.73 is: 21,594.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.98 : 38,949.47 = 15,647.73 : x
  2. Step 2: Convert to fraction form
    28,222.98/38,949.47 = 15,647.73/x
  3. Step 3: Cross multiply
    28,222.98x = 38,949.47 × 15,647.73
  4. Step 4: Simplify right side
    28,222.98x = 609,470,790.20
  5. Step 5: Solve for x
    x = 609,470,790.20/28,222.98
  6. Step 6: Final answer
    x = 21,594.84

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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.