Home / 20,735.06-28,615.18-11,784.08

Finding the Fourth Proportional to 20,735.06, 28,615.18 and 11,784.08

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Solution

The fourth proportional to 20,735.06, 28,615.18 and 11,784.08 is: 16,262.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.06 : 28,615.18 = 11,784.08 : x
  2. Step 2: Convert to fraction form
    20,735.06/28,615.18 = 11,784.08/x
  3. Step 3: Cross multiply
    20,735.06x = 28,615.18 × 11,784.08
  4. Step 4: Simplify right side
    20,735.06x = 337,203,570.33
  5. Step 5: Solve for x
    x = 337,203,570.33/20,735.06
  6. Step 6: Final answer
    x = 16,262.48

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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.