Home / 20,670.13-31,004.74-6,629.59

Finding the Fourth Proportional to 20,670.13, 31,004.74 and 6,629.59

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Solution

The fourth proportional to 20,670.13, 31,004.74 and 6,629.59 is: 9,944.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670.13 : 31,004.74 = 6,629.59 : x
  2. Step 2: Convert to fraction form
    20,670.13/31,004.74 = 6,629.59/x
  3. Step 3: Cross multiply
    20,670.13x = 31,004.74 × 6,629.59
  4. Step 4: Simplify right side
    20,670.13x = 205,548,697.68
  5. Step 5: Solve for x
    x = 205,548,697.68/20,670.13
  6. Step 6: Final answer
    x = 9,944.24

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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.