Home / 40,311.40-55,627.35-22,405.79

Finding the Fourth Proportional to 40,311.40, 55,627.35 and 22,405.79

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Solution

The fourth proportional to 40,311.40, 55,627.35 and 22,405.79 is: 30,918.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,311.40 : 55,627.35 = 22,405.79 : x
  2. Step 2: Convert to fraction form
    40,311.40/55,627.35 = 22,405.79/x
  3. Step 3: Cross multiply
    40,311.40x = 55,627.35 × 22,405.79
  4. Step 4: Simplify right side
    40,311.40x = 1,246,374,722.36
  5. Step 5: Solve for x
    x = 1,246,374,722.36/40,311.40
  6. Step 6: Final answer
    x = 30,918.67

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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.