Home / 22,269.51-33,393.84-12,912.20

Finding the Fourth Proportional to 22,269.51, 33,393.84 and 12,912.20

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Solution

The fourth proportional to 22,269.51, 33,393.84 and 12,912.20 is: 19,362.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,269.51 : 33,393.84 = 12,912.20 : x
  2. Step 2: Convert to fraction form
    22,269.51/33,393.84 = 12,912.20/x
  3. Step 3: Cross multiply
    22,269.51x = 33,393.84 × 12,912.20
  4. Step 4: Simplify right side
    22,269.51x = 431,187,773.88
  5. Step 5: Solve for x
    x = 431,187,773.88/22,269.51
  6. Step 6: Final answer
    x = 19,362.25

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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.