Home / 19,940.72-27,475.62-18,118.22

Finding the Fourth Proportional to 19,940.72, 27,475.62 and 18,118.22

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Solution

The fourth proportional to 19,940.72, 27,475.62 and 18,118.22 is: 24,964.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.72 : 27,475.62 = 18,118.22 : x
  2. Step 2: Convert to fraction form
    19,940.72/27,475.62 = 18,118.22/x
  3. Step 3: Cross multiply
    19,940.72x = 27,475.62 × 18,118.22
  4. Step 4: Simplify right side
    19,940.72x = 497,809,327.80
  5. Step 5: Solve for x
    x = 497,809,327.80/19,940.72
  6. Step 6: Final answer
    x = 24,964.46

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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.