Home / 20,670.42-31,004.00-6,626.71

Finding the Fourth Proportional to 20,670.42, 31,004.00 and 6,626.71

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Solution

The fourth proportional to 20,670.42, 31,004.00 and 6,626.71 is: 9,939.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670.42 : 31,004.00 = 6,626.71 : x
  2. Step 2: Convert to fraction form
    20,670.42/31,004.00 = 6,626.71/x
  3. Step 3: Cross multiply
    20,670.42x = 31,004.00 × 6,626.71
  4. Step 4: Simplify right side
    20,670.42x = 205,454,547.31
  5. Step 5: Solve for x
    x = 205,454,547.31/20,670.42
  6. Step 6: Final answer
    x = 9,939.54

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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.