Home / 20,409.19-30,604.55-7,261.91

Finding the Fourth Proportional to 20,409.19, 30,604.55 and 7,261.91

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Solution

The fourth proportional to 20,409.19, 30,604.55 and 7,261.91 is: 10,889.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409.19 : 30,604.55 = 7,261.91 : x
  2. Step 2: Convert to fraction form
    20,409.19/30,604.55 = 7,261.91/x
  3. Step 3: Cross multiply
    20,409.19x = 30,604.55 × 7,261.91
  4. Step 4: Simplify right side
    20,409.19x = 222,247,298.36
  5. Step 5: Solve for x
    x = 222,247,298.36/20,409.19
  6. Step 6: Final answer
    x = 10,889.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.