Home / 20,267.48-30,401.04-8,579

Finding the Fourth Proportional to 20,267.48, 30,401.04 and 8,579

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Solution

The fourth proportional to 20,267.48, 30,401.04 and 8,579 is: 12,868.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,267.48 : 30,401.04 = 8,579 : x
  2. Step 2: Convert to fraction form
    20,267.48/30,401.04 = 8,579/x
  3. Step 3: Cross multiply
    20,267.48x = 30,401.04 × 8,579
  4. Step 4: Simplify right side
    20,267.48x = 260,810,522.16
  5. Step 5: Solve for x
    x = 260,810,522.16/20,267.48
  6. Step 6: Final answer
    x = 12,868.42

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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.