Home / 28,623.37-42,921.42-10,605.73

Finding the Fourth Proportional to 28,623.37, 42,921.42 and 10,605.73

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Solution

The fourth proportional to 28,623.37, 42,921.42 and 10,605.73 is: 15,903.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,623.37 : 42,921.42 = 10,605.73 : x
  2. Step 2: Convert to fraction form
    28,623.37/42,921.42 = 10,605.73/x
  3. Step 3: Cross multiply
    28,623.37x = 42,921.42 × 10,605.73
  4. Step 4: Simplify right side
    28,623.37x = 455,212,991.74
  5. Step 5: Solve for x
    x = 455,212,991.74/28,623.37
  6. Step 6: Final answer
    x = 15,903.54

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1.5x scale

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.