Home / 20,701.42-28,567.94-11,269.98

Finding the Fourth Proportional to 20,701.42, 28,567.94 and 11,269.98

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Solution

The fourth proportional to 20,701.42, 28,567.94 and 11,269.98 is: 15,552.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.42 : 28,567.94 = 11,269.98 : x
  2. Step 2: Convert to fraction form
    20,701.42/28,567.94 = 11,269.98/x
  3. Step 3: Cross multiply
    20,701.42x = 28,567.94 × 11,269.98
  4. Step 4: Simplify right side
    20,701.42x = 321,960,056.09
  5. Step 5: Solve for x
    x = 321,960,056.09/20,701.42
  6. Step 6: Final answer
    x = 15,552.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.