Home / 20,493.20-28,293.69-16,725.36

Finding the Fourth Proportional to 20,493.20, 28,293.69 and 16,725.36

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Solution

The fourth proportional to 20,493.20, 28,293.69 and 16,725.36 is: 23,091.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,493.20 : 28,293.69 = 16,725.36 : x
  2. Step 2: Convert to fraction form
    20,493.20/28,293.69 = 16,725.36/x
  3. Step 3: Cross multiply
    20,493.20x = 28,293.69 × 16,725.36
  4. Step 4: Simplify right side
    20,493.20x = 473,222,257.08
  5. Step 5: Solve for x
    x = 473,222,257.08/20,493.20
  6. Step 6: Final answer
    x = 23,091.67

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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.