Home / 40,023.48-55,232.81-21,874.72

Finding the Fourth Proportional to 40,023.48, 55,232.81 and 21,874.72

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Solution

The fourth proportional to 40,023.48, 55,232.81 and 21,874.72 is: 30,187.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,023.48 : 55,232.81 = 21,874.72 : x
  2. Step 2: Convert to fraction form
    40,023.48/55,232.81 = 21,874.72/x
  3. Step 3: Cross multiply
    40,023.48x = 55,232.81 × 21,874.72
  4. Step 4: Simplify right side
    40,023.48x = 1,208,202,253.56
  5. Step 5: Solve for x
    x = 1,208,202,253.56/40,023.48
  6. Step 6: Final answer
    x = 30,187.34

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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.