Home / 19,670.74-29,485.09-11,219.05

Finding the Fourth Proportional to 19,670.74, 29,485.09 and 11,219.05

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Solution

The fourth proportional to 19,670.74, 29,485.09 and 11,219.05 is: 16,816.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.74 : 29,485.09 = 11,219.05 : x
  2. Step 2: Convert to fraction form
    19,670.74/29,485.09 = 11,219.05/x
  3. Step 3: Cross multiply
    19,670.74x = 29,485.09 × 11,219.05
  4. Step 4: Simplify right side
    19,670.74x = 330,794,579.59
  5. Step 5: Solve for x
    x = 330,794,579.59/19,670.74
  6. Step 6: Final answer
    x = 16,816.58

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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.