Home / 28,292.84-42,450.20-8,571.58

Finding the Fourth Proportional to 28,292.84, 42,450.20 and 8,571.58

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Solution

The fourth proportional to 28,292.84, 42,450.20 and 8,571.58 is: 12,860.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292.84 : 42,450.20 = 8,571.58 : x
  2. Step 2: Convert to fraction form
    28,292.84/42,450.20 = 8,571.58/x
  3. Step 3: Cross multiply
    28,292.84x = 42,450.20 × 8,571.58
  4. Step 4: Simplify right side
    28,292.84x = 363,865,285.32
  5. Step 5: Solve for x
    x = 363,865,285.32/28,292.84
  6. Step 6: Final answer
    x = 12,860.68

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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.