Home / 20,580.03-28,398.76-11,628.31

Finding the Fourth Proportional to 20,580.03, 28,398.76 and 11,628.31

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Solution

The fourth proportional to 20,580.03, 28,398.76 and 11,628.31 is: 16,046.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580.03 : 28,398.76 = 11,628.31 : x
  2. Step 2: Convert to fraction form
    20,580.03/28,398.76 = 11,628.31/x
  3. Step 3: Cross multiply
    20,580.03x = 28,398.76 × 11,628.31
  4. Step 4: Simplify right side
    20,580.03x = 330,229,584.90
  5. Step 5: Solve for x
    x = 330,229,584.90/20,580.03
  6. Step 6: Final answer
    x = 16,046.12

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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.