Home / 28,821.90-43,232.85-8,045.40

Finding the Fourth Proportional to 28,821.90, 43,232.85 and 8,045.40

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Solution

The fourth proportional to 28,821.90, 43,232.85 and 8,045.40 is: 12,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,821.90 : 43,232.85 = 8,045.40 : x
  2. Step 2: Convert to fraction form
    28,821.90/43,232.85 = 8,045.40/x
  3. Step 3: Cross multiply
    28,821.90x = 43,232.85 × 8,045.40
  4. Step 4: Simplify right side
    28,821.90x = 347,825,571.39
  5. Step 5: Solve for x
    x = 347,825,571.39/28,821.90
  6. Step 6: Final answer
    x = 12,068.10

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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.