Home / 28,087.41-42,126.48-8,361.35

Finding the Fourth Proportional to 28,087.41, 42,126.48 and 8,361.35

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Solution

The fourth proportional to 28,087.41, 42,126.48 and 8,361.35 is: 12,540.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,087.41 : 42,126.48 = 8,361.35 : x
  2. Step 2: Convert to fraction form
    28,087.41/42,126.48 = 8,361.35/x
  3. Step 3: Cross multiply
    28,087.41x = 42,126.48 × 8,361.35
  4. Step 4: Simplify right side
    28,087.41x = 352,234,309.37
  5. Step 5: Solve for x
    x = 352,234,309.37/28,087.41
  6. Step 6: Final answer
    x = 12,540.65

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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.