Home / 28,311.21-42,466.95-8,589.94

Finding the Fourth Proportional to 28,311.21, 42,466.95 and 8,589.94

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Solution

The fourth proportional to 28,311.21, 42,466.95 and 8,589.94 is: 12,884.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,311.21 : 42,466.95 = 8,589.94 : x
  2. Step 2: Convert to fraction form
    28,311.21/42,466.95 = 8,589.94/x
  3. Step 3: Cross multiply
    28,311.21x = 42,466.95 × 8,589.94
  4. Step 4: Simplify right side
    28,311.21x = 364,788,446.32
  5. Step 5: Solve for x
    x = 364,788,446.32/28,311.21
  6. Step 6: Final answer
    x = 12,884.95

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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.