Home / 40,111.22-55,354.38-21,963.67

Finding the Fourth Proportional to 40,111.22, 55,354.38 and 21,963.67

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Solution

The fourth proportional to 40,111.22, 55,354.38 and 21,963.67 is: 30,310.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,111.22 : 55,354.38 = 21,963.67 : x
  2. Step 2: Convert to fraction form
    40,111.22/55,354.38 = 21,963.67/x
  3. Step 3: Cross multiply
    40,111.22x = 55,354.38 × 21,963.67
  4. Step 4: Simplify right side
    40,111.22x = 1,215,785,335.37
  5. Step 5: Solve for x
    x = 1,215,785,335.37/40,111.22
  6. Step 6: Final answer
    x = 30,310.36

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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.