Home / 40,078.10-55,304.73-22,172.72

Finding the Fourth Proportional to 40,078.10, 55,304.73 and 22,172.72

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Solution

The fourth proportional to 40,078.10, 55,304.73 and 22,172.72 is: 30,596.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,078.10 : 55,304.73 = 22,172.72 : x
  2. Step 2: Convert to fraction form
    40,078.10/55,304.73 = 22,172.72/x
  3. Step 3: Cross multiply
    40,078.10x = 55,304.73 × 22,172.72
  4. Step 4: Simplify right side
    40,078.10x = 1,226,256,292.97
  5. Step 5: Solve for x
    x = 1,226,256,292.97/40,078.10
  6. Step 6: Final answer
    x = 30,596.67

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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.