Home / 22,123.44-30,534.80-13,629.76

Finding the Fourth Proportional to 22,123.44, 30,534.80 and 13,629.76

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Solution

The fourth proportional to 22,123.44, 30,534.80 and 13,629.76 is: 18,811.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,123.44 : 30,534.80 = 13,629.76 : x
  2. Step 2: Convert to fraction form
    22,123.44/30,534.80 = 13,629.76/x
  3. Step 3: Cross multiply
    22,123.44x = 30,534.80 × 13,629.76
  4. Step 4: Simplify right side
    22,123.44x = 416,181,995.65
  5. Step 5: Solve for x
    x = 416,181,995.65/22,123.44
  6. Step 6: Final answer
    x = 18,811.81

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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.