Home / 20,787.69-31,181.64-5,996.69

Finding the Fourth Proportional to 20,787.69, 31,181.64 and 5,996.69

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Solution

The fourth proportional to 20,787.69, 31,181.64 and 5,996.69 is: 8,995.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,787.69 : 31,181.64 = 5,996.69 : x
  2. Step 2: Convert to fraction form
    20,787.69/31,181.64 = 5,996.69/x
  3. Step 3: Cross multiply
    20,787.69x = 31,181.64 × 5,996.69
  4. Step 4: Simplify right side
    20,787.69x = 186,986,628.77
  5. Step 5: Solve for x
    x = 186,986,628.77/20,787.69
  6. Step 6: Final answer
    x = 8,995.07

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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.