Home / 20,808.99-31,207.01-6,954.75

Finding the Fourth Proportional to 20,808.99, 31,207.01 and 6,954.75

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Solution

The fourth proportional to 20,808.99, 31,207.01 and 6,954.75 is: 10,429.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,808.99 : 31,207.01 = 6,954.75 : x
  2. Step 2: Convert to fraction form
    20,808.99/31,207.01 = 6,954.75/x
  3. Step 3: Cross multiply
    20,808.99x = 31,207.01 × 6,954.75
  4. Step 4: Simplify right side
    20,808.99x = 217,036,918.02
  5. Step 5: Solve for x
    x = 217,036,918.02/20,808.99
  6. Step 6: Final answer
    x = 10,429.96

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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.