Home / 30,206.89-45,323.83-15,408.01

Finding the Fourth Proportional to 30,206.89, 45,323.83 and 15,408.01

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Solution

The fourth proportional to 30,206.89, 45,323.83 and 15,408.01 is: 23,118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,206.89 : 45,323.83 = 15,408.01 : x
  2. Step 2: Convert to fraction form
    30,206.89/45,323.83 = 15,408.01/x
  3. Step 3: Cross multiply
    30,206.89x = 45,323.83 × 15,408.01
  4. Step 4: Simplify right side
    30,206.89x = 698,350,025.88
  5. Step 5: Solve for x
    x = 698,350,025.88/30,206.89
  6. Step 6: Final answer
    x = 23,118.90

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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.