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Finding the Fourth Proportional to 20,035.44, 30,060.72 and 8,347.68

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Solution

The fourth proportional to 20,035.44, 30,060.72 and 8,347.68 is: 12,524.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,035.44 : 30,060.72 = 8,347.68 : x
  2. Step 2: Convert to fraction form
    20,035.44/30,060.72 = 8,347.68/x
  3. Step 3: Cross multiply
    20,035.44x = 30,060.72 × 8,347.68
  4. Step 4: Simplify right side
    20,035.44x = 250,937,271.13
  5. Step 5: Solve for x
    x = 250,937,271.13/20,035.44
  6. Step 6: Final answer
    x = 12,524.67

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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.