Home / 28,903.14-43,363.44-20,485.92

Finding the Fourth Proportional to 28,903.14, 43,363.44 and 20,485.92

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Solution

The fourth proportional to 28,903.14, 43,363.44 and 20,485.92 is: 30,735.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.14 : 43,363.44 = 20,485.92 : x
  2. Step 2: Convert to fraction form
    28,903.14/43,363.44 = 20,485.92/x
  3. Step 3: Cross multiply
    28,903.14x = 43,363.44 × 20,485.92
  4. Step 4: Simplify right side
    28,903.14x = 888,339,962.76
  5. Step 5: Solve for x
    x = 888,339,962.76/28,903.14
  6. Step 6: Final answer
    x = 30,735.07

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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.