Home / 22,221.56-30,667.64-12,664.37

Finding the Fourth Proportional to 22,221.56, 30,667.64 and 12,664.37

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Solution

The fourth proportional to 22,221.56, 30,667.64 and 12,664.37 is: 17,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,221.56 : 30,667.64 = 12,664.37 : x
  2. Step 2: Convert to fraction form
    22,221.56/30,667.64 = 12,664.37/x
  3. Step 3: Cross multiply
    22,221.56x = 30,667.64 × 12,664.37
  4. Step 4: Simplify right side
    22,221.56x = 388,386,123.33
  5. Step 5: Solve for x
    x = 388,386,123.33/22,221.56
  6. Step 6: Final answer
    x = 17,477.90

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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.