Home / 20,801.50-28,706.26-11,848.88

Finding the Fourth Proportional to 20,801.50, 28,706.26 and 11,848.88

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Solution

The fourth proportional to 20,801.50, 28,706.26 and 11,848.88 is: 16,351.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801.50 : 28,706.26 = 11,848.88 : x
  2. Step 2: Convert to fraction form
    20,801.50/28,706.26 = 11,848.88/x
  3. Step 3: Cross multiply
    20,801.50x = 28,706.26 × 11,848.88
  4. Step 4: Simplify right side
    20,801.50x = 340,137,029.99
  5. Step 5: Solve for x
    x = 340,137,029.99/20,801.50
  6. Step 6: Final answer
    x = 16,351.56

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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.