Home / 20,670.99-31,009.24-6,626.35

Finding the Fourth Proportional to 20,670.99, 31,009.24 and 6,626.35

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Solution

The fourth proportional to 20,670.99, 31,009.24 and 6,626.35 is: 9,940.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670.99 : 31,009.24 = 6,626.35 : x
  2. Step 2: Convert to fraction form
    20,670.99/31,009.24 = 6,626.35/x
  3. Step 3: Cross multiply
    20,670.99x = 31,009.24 × 6,626.35
  4. Step 4: Simplify right side
    20,670.99x = 205,478,189.18
  5. Step 5: Solve for x
    x = 205,478,189.18/20,670.99
  6. Step 6: Final answer
    x = 9,940.41

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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.