Home / 28,650.84-42,947.97-12,015.60

Finding the Fourth Proportional to 28,650.84, 42,947.97 and 12,015.60

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Solution

The fourth proportional to 28,650.84, 42,947.97 and 12,015.60 is: 18,011.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,650.84 : 42,947.97 = 12,015.60 : x
  2. Step 2: Convert to fraction form
    28,650.84/42,947.97 = 12,015.60/x
  3. Step 3: Cross multiply
    28,650.84x = 42,947.97 × 12,015.60
  4. Step 4: Simplify right side
    28,650.84x = 516,045,628.33
  5. Step 5: Solve for x
    x = 516,045,628.33/28,650.84
  6. Step 6: Final answer
    x = 18,011.54

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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.