Home / 20,962.58-28,928.24-11,530.94

Finding the Fourth Proportional to 20,962.58, 28,928.24 and 11,530.94

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Solution

The fourth proportional to 20,962.58, 28,928.24 and 11,530.94 is: 15,912.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.58 : 28,928.24 = 11,530.94 : x
  2. Step 2: Convert to fraction form
    20,962.58/28,928.24 = 11,530.94/x
  3. Step 3: Cross multiply
    20,962.58x = 28,928.24 × 11,530.94
  4. Step 4: Simplify right side
    20,962.58x = 333,569,799.75
  5. Step 5: Solve for x
    x = 333,569,799.75/20,962.58
  6. Step 6: Final answer
    x = 15,912.63

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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.