Home / 20,790.30-31,181.70-5,995.58

Finding the Fourth Proportional to 20,790.30, 31,181.70 and 5,995.58

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Solution

The fourth proportional to 20,790.30, 31,181.70 and 5,995.58 is: 8,992.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790.30 : 31,181.70 = 5,995.58 : x
  2. Step 2: Convert to fraction form
    20,790.30/31,181.70 = 5,995.58/x
  3. Step 3: Cross multiply
    20,790.30x = 31,181.70 × 5,995.58
  4. Step 4: Simplify right side
    20,790.30x = 186,952,376.89
  5. Step 5: Solve for x
    x = 186,952,376.89/20,790.30
  6. Step 6: Final answer
    x = 8,992.29

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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.