Home / 20,670.02-31,007.31-6,626.72

Finding the Fourth Proportional to 20,670.02, 31,007.31 and 6,626.72

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Solution

The fourth proportional to 20,670.02, 31,007.31 and 6,626.72 is: 9,940.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670.02 : 31,007.31 = 6,626.72 : x
  2. Step 2: Convert to fraction form
    20,670.02/31,007.31 = 6,626.72/x
  3. Step 3: Cross multiply
    20,670.02x = 31,007.31 × 6,626.72
  4. Step 4: Simplify right side
    20,670.02x = 205,476,761.32
  5. Step 5: Solve for x
    x = 205,476,761.32/20,670.02
  6. Step 6: Final answer
    x = 9,940.81

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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.