Home / 28,525.84-42,793.62-12,736.78

Finding the Fourth Proportional to 28,525.84, 42,793.62 and 12,736.78

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Solution

The fourth proportional to 28,525.84, 42,793.62 and 12,736.78 is: 19,107.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,525.84 : 42,793.62 = 12,736.78 : x
  2. Step 2: Convert to fraction form
    28,525.84/42,793.62 = 12,736.78/x
  3. Step 3: Cross multiply
    28,525.84x = 42,793.62 × 12,736.78
  4. Step 4: Simplify right side
    28,525.84x = 545,052,923.34
  5. Step 5: Solve for x
    x = 545,052,923.34/28,525.84
  6. Step 6: Final answer
    x = 19,107.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.