Home / 20,522.92-30,744.18-18,291.40

Finding the Fourth Proportional to 20,522.92, 30,744.18 and 18,291.40

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Solution

The fourth proportional to 20,522.92, 30,744.18 and 18,291.40 is: 27,401.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522.92 : 30,744.18 = 18,291.40 : x
  2. Step 2: Convert to fraction form
    20,522.92/30,744.18 = 18,291.40/x
  3. Step 3: Cross multiply
    20,522.92x = 30,744.18 × 18,291.40
  4. Step 4: Simplify right side
    20,522.92x = 562,354,094.05
  5. Step 5: Solve for x
    x = 562,354,094.05/20,522.92
  6. Step 6: Final answer
    x = 27,401.27

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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.