Home / 20,526.94-30,756.66-8,670.98

Finding the Fourth Proportional to 20,526.94, 30,756.66 and 8,670.98

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Solution

The fourth proportional to 20,526.94, 30,756.66 and 8,670.98 is: 12,992.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.94 : 30,756.66 = 8,670.98 : x
  2. Step 2: Convert to fraction form
    20,526.94/30,756.66 = 8,670.98/x
  3. Step 3: Cross multiply
    20,526.94x = 30,756.66 × 8,670.98
  4. Step 4: Simplify right side
    20,526.94x = 266,690,383.73
  5. Step 5: Solve for x
    x = 266,690,383.73/20,526.94
  6. Step 6: Final answer
    x = 12,992.21

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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.