Home / 19,662.81-29,467.90-7,171.08

Finding the Fourth Proportional to 19,662.81, 29,467.90 and 7,171.08

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Solution

The fourth proportional to 19,662.81, 29,467.90 and 7,171.08 is: 10,747.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.81 : 29,467.90 = 7,171.08 : x
  2. Step 2: Convert to fraction form
    19,662.81/29,467.90 = 7,171.08/x
  3. Step 3: Cross multiply
    19,662.81x = 29,467.90 × 7,171.08
  4. Step 4: Simplify right side
    19,662.81x = 211,316,668.33
  5. Step 5: Solve for x
    x = 211,316,668.33/19,662.81
  6. Step 6: Final answer
    x = 10,747.02

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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.