Home / 20,967.26-28,935.26-11,535.84

Finding the Fourth Proportional to 20,967.26, 28,935.26 and 11,535.84

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Solution

The fourth proportional to 20,967.26, 28,935.26 and 11,535.84 is: 15,919.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,967.26 : 28,935.26 = 11,535.84 : x
  2. Step 2: Convert to fraction form
    20,967.26/28,935.26 = 11,535.84/x
  3. Step 3: Cross multiply
    20,967.26x = 28,935.26 × 11,535.84
  4. Step 4: Simplify right side
    20,967.26x = 333,792,529.72
  5. Step 5: Solve for x
    x = 333,792,529.72/20,967.26
  6. Step 6: Final answer
    x = 15,919.70

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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.