Home / 28,680.84-43,014.77-10,905.16

Finding the Fourth Proportional to 28,680.84, 43,014.77 and 10,905.16

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Solution

The fourth proportional to 28,680.84, 43,014.77 and 10,905.16 is: 16,355.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,680.84 : 43,014.77 = 10,905.16 : x
  2. Step 2: Convert to fraction form
    28,680.84/43,014.77 = 10,905.16/x
  3. Step 3: Cross multiply
    28,680.84x = 43,014.77 × 10,905.16
  4. Step 4: Simplify right side
    28,680.84x = 469,082,868.94
  5. Step 5: Solve for x
    x = 469,082,868.94/28,680.84
  6. Step 6: Final answer
    x = 16,355.27

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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.