Home / 20,802.99-31,198.01-6,948.75

Finding the Fourth Proportional to 20,802.99, 31,198.01 and 6,948.75

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Solution

The fourth proportional to 20,802.99, 31,198.01 and 6,948.75 is: 10,420.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802.99 : 31,198.01 = 6,948.75 : x
  2. Step 2: Convert to fraction form
    20,802.99/31,198.01 = 6,948.75/x
  3. Step 3: Cross multiply
    20,802.99x = 31,198.01 × 6,948.75
  4. Step 4: Simplify right side
    20,802.99x = 216,787,137.24
  5. Step 5: Solve for x
    x = 216,787,137.24/20,802.99
  6. Step 6: Final answer
    x = 10,420.96

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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.