Home / 28,807.50-43,181.86-18,285.29

Finding the Fourth Proportional to 28,807.50, 43,181.86 and 18,285.29

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Solution

The fourth proportional to 28,807.50, 43,181.86 and 18,285.29 is: 27,409.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,807.50 : 43,181.86 = 18,285.29 : x
  2. Step 2: Convert to fraction form
    28,807.50/43,181.86 = 18,285.29/x
  3. Step 3: Cross multiply
    28,807.50x = 43,181.86 × 18,285.29
  4. Step 4: Simplify right side
    28,807.50x = 789,593,010.33
  5. Step 5: Solve for x
    x = 789,593,010.33/28,807.50
  6. Step 6: Final answer
    x = 27,409.29

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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.