Home / 40,123.37-55,370.21-22,218.37

Finding the Fourth Proportional to 40,123.37, 55,370.21 and 22,218.37

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Solution

The fourth proportional to 40,123.37, 55,370.21 and 22,218.37 is: 30,661.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,123.37 : 55,370.21 = 22,218.37 : x
  2. Step 2: Convert to fraction form
    40,123.37/55,370.21 = 22,218.37/x
  3. Step 3: Cross multiply
    40,123.37x = 55,370.21 × 22,218.37
  4. Step 4: Simplify right side
    40,123.37x = 1,230,235,812.76
  5. Step 5: Solve for x
    x = 1,230,235,812.76/40,123.37
  6. Step 6: Final answer
    x = 30,661.33

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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.