Home / 20,935.08-28,890.93-11,374.96

Finding the Fourth Proportional to 20,935.08, 28,890.93 and 11,374.96

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Solution

The fourth proportional to 20,935.08, 28,890.93 and 11,374.96 is: 15,697.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,935.08 : 28,890.93 = 11,374.96 : x
  2. Step 2: Convert to fraction form
    20,935.08/28,890.93 = 11,374.96/x
  3. Step 3: Cross multiply
    20,935.08x = 28,890.93 × 11,374.96
  4. Step 4: Simplify right side
    20,935.08x = 328,633,173.11
  5. Step 5: Solve for x
    x = 328,633,173.11/20,935.08
  6. Step 6: Final answer
    x = 15,697.73

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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.