Home / 28,014.84-42,028.49-12,222.43

Finding the Fourth Proportional to 28,014.84, 42,028.49 and 12,222.43

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Solution

The fourth proportional to 28,014.84, 42,028.49 and 12,222.43 is: 18,336.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,014.84 : 42,028.49 = 12,222.43 : x
  2. Step 2: Convert to fraction form
    28,014.84/42,028.49 = 12,222.43/x
  3. Step 3: Cross multiply
    28,014.84x = 42,028.49 × 12,222.43
  4. Step 4: Simplify right side
    28,014.84x = 513,690,202.52
  5. Step 5: Solve for x
    x = 513,690,202.52/28,014.84
  6. Step 6: Final answer
    x = 18,336.36

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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.