Home / 19,770.36-27,290.01-12,222.48

Finding the Fourth Proportional to 19,770.36, 27,290.01 and 12,222.48

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Solution

The fourth proportional to 19,770.36, 27,290.01 and 12,222.48 is: 16,871.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,770.36 : 27,290.01 = 12,222.48 : x
  2. Step 2: Convert to fraction form
    19,770.36/27,290.01 = 12,222.48/x
  3. Step 3: Cross multiply
    19,770.36x = 27,290.01 × 12,222.48
  4. Step 4: Simplify right side
    19,770.36x = 333,551,601.42
  5. Step 5: Solve for x
    x = 333,551,601.42/19,770.36
  6. Step 6: Final answer
    x = 16,871.30

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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.