Home / 20,958.66-28,923-11,527.26

Finding the Fourth Proportional to 20,958.66, 28,923 and 11,527.26

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Solution

The fourth proportional to 20,958.66, 28,923 and 11,527.26 is: 15,907.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,958.66 : 28,923 = 11,527.26 : x
  2. Step 2: Convert to fraction form
    20,958.66/28,923 = 11,527.26/x
  3. Step 3: Cross multiply
    20,958.66x = 28,923 × 11,527.26
  4. Step 4: Simplify right side
    20,958.66x = 333,402,940.98
  5. Step 5: Solve for x
    x = 333,402,940.98/20,958.66
  6. Step 6: Final answer
    x = 15,907.65

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1.5x scale

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.