Home / 20,493.77-30,728.33-13,899.96

Finding the Fourth Proportional to 20,493.77, 30,728.33 and 13,899.96

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Solution

The fourth proportional to 20,493.77, 30,728.33 and 13,899.96 is: 20,841.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,493.77 : 30,728.33 = 13,899.96 : x
  2. Step 2: Convert to fraction form
    20,493.77/30,728.33 = 13,899.96/x
  3. Step 3: Cross multiply
    20,493.77x = 30,728.33 × 13,899.96
  4. Step 4: Simplify right side
    20,493.77x = 427,122,557.87
  5. Step 5: Solve for x
    x = 427,122,557.87/20,493.77
  6. Step 6: Final answer
    x = 20,841.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.