Home / 20,344.76-30,529.98-8,657.96

Finding the Fourth Proportional to 20,344.76, 30,529.98 and 8,657.96

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Solution

The fourth proportional to 20,344.76, 30,529.98 and 8,657.96 is: 12,992.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.76 : 30,529.98 = 8,657.96 : x
  2. Step 2: Convert to fraction form
    20,344.76/30,529.98 = 8,657.96/x
  3. Step 3: Cross multiply
    20,344.76x = 30,529.98 × 8,657.96
  4. Step 4: Simplify right side
    20,344.76x = 264,327,345.64
  5. Step 5: Solve for x
    x = 264,327,345.64/20,344.76
  6. Step 6: Final answer
    x = 12,992.40

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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.