Home / 29,431.08-40,614.59-21,911.04

Finding the Fourth Proportional to 29,431.08, 40,614.59 and 21,911.04

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Solution

The fourth proportional to 29,431.08, 40,614.59 and 21,911.04 is: 30,237.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,431.08 : 40,614.59 = 21,911.04 : x
  2. Step 2: Convert to fraction form
    29,431.08/40,614.59 = 21,911.04/x
  3. Step 3: Cross multiply
    29,431.08x = 40,614.59 × 21,911.04
  4. Step 4: Simplify right side
    29,431.08x = 889,907,796.52
  5. Step 5: Solve for x
    x = 889,907,796.52/29,431.08
  6. Step 6: Final answer
    x = 30,237.01

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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.