Home / 20,300.58-27,996.66-12,747.62

Finding the Fourth Proportional to 20,300.58, 27,996.66 and 12,747.62

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Solution

The fourth proportional to 20,300.58, 27,996.66 and 12,747.62 is: 17,580.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,300.58 : 27,996.66 = 12,747.62 : x
  2. Step 2: Convert to fraction form
    20,300.58/27,996.66 = 12,747.62/x
  3. Step 3: Cross multiply
    20,300.58x = 27,996.66 × 12,747.62
  4. Step 4: Simplify right side
    20,300.58x = 356,890,782.95
  5. Step 5: Solve for x
    x = 356,890,782.95/20,300.58
  6. Step 6: Final answer
    x = 17,580.32

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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.