Home / 20,603.04-30,903.12-5,811.36

Finding the Fourth Proportional to 20,603.04, 30,903.12 and 5,811.36

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Solution

The fourth proportional to 20,603.04, 30,903.12 and 5,811.36 is: 8,716.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,603.04 : 30,903.12 = 5,811.36 : x
  2. Step 2: Convert to fraction form
    20,603.04/30,903.12 = 5,811.36/x
  3. Step 3: Cross multiply
    20,603.04x = 30,903.12 × 5,811.36
  4. Step 4: Simplify right side
    20,603.04x = 179,589,155.44
  5. Step 5: Solve for x
    x = 179,589,155.44/20,603.04
  6. Step 6: Final answer
    x = 8,716.63

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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.