Home / 40,068.77-55,293.21-21,919.19

Finding the Fourth Proportional to 40,068.77, 55,293.21 and 21,919.19

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Solution

The fourth proportional to 40,068.77, 55,293.21 and 21,919.19 is: 30,247.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,068.77 : 55,293.21 = 21,919.19 : x
  2. Step 2: Convert to fraction form
    40,068.77/55,293.21 = 21,919.19/x
  3. Step 3: Cross multiply
    40,068.77x = 55,293.21 × 21,919.19
  4. Step 4: Simplify right side
    40,068.77x = 1,211,982,375.70
  5. Step 5: Solve for x
    x = 1,211,982,375.70/40,068.77
  6. Step 6: Final answer
    x = 30,247.56

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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.