Home / 20,544.03-30,820.10-8,697.78

Finding the Fourth Proportional to 20,544.03, 30,820.10 and 8,697.78

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Solution

The fourth proportional to 20,544.03, 30,820.10 and 8,697.78 is: 13,048.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.03 : 30,820.10 = 8,697.78 : x
  2. Step 2: Convert to fraction form
    20,544.03/30,820.10 = 8,697.78/x
  3. Step 3: Cross multiply
    20,544.03x = 30,820.10 × 8,697.78
  4. Step 4: Simplify right side
    20,544.03x = 268,066,405.89
  5. Step 5: Solve for x
    x = 268,066,405.89/20,544.03
  6. Step 6: Final answer
    x = 13,048.38

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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.