Home / 28,230.84-42,292.80-18,842.54

Finding the Fourth Proportional to 28,230.84, 42,292.80 and 18,842.54

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Solution

The fourth proportional to 28,230.84, 42,292.80 and 18,842.54 is: 28,228.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.84 : 42,292.80 = 18,842.54 : x
  2. Step 2: Convert to fraction form
    28,230.84/42,292.80 = 18,842.54/x
  3. Step 3: Cross multiply
    28,230.84x = 42,292.80 × 18,842.54
  4. Step 4: Simplify right side
    28,230.84x = 796,903,564.25
  5. Step 5: Solve for x
    x = 796,903,564.25/28,230.84
  6. Step 6: Final answer
    x = 28,228.12

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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.