Home / 30,388.08-41,940.90-19,646.16

Finding the Fourth Proportional to 30,388.08, 41,940.90 and 19,646.16

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Solution

The fourth proportional to 30,388.08, 41,940.90 and 19,646.16 is: 27,115.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,388.08 : 41,940.90 = 19,646.16 : x
  2. Step 2: Convert to fraction form
    30,388.08/41,940.90 = 19,646.16/x
  3. Step 3: Cross multiply
    30,388.08x = 41,940.90 × 19,646.16
  4. Step 4: Simplify right side
    30,388.08x = 823,977,631.94
  5. Step 5: Solve for x
    x = 823,977,631.94/30,388.08
  6. Step 6: Final answer
    x = 27,115.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.