Home / 20,735.56-28,615.84-11,784.60

Finding the Fourth Proportional to 20,735.56, 28,615.84 and 11,784.60

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Solution

The fourth proportional to 20,735.56, 28,615.84 and 11,784.60 is: 16,263.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.56 : 28,615.84 = 11,784.60 : x
  2. Step 2: Convert to fraction form
    20,735.56/28,615.84 = 11,784.60/x
  3. Step 3: Cross multiply
    20,735.56x = 28,615.84 × 11,784.60
  4. Step 4: Simplify right side
    20,735.56x = 337,226,228.06
  5. Step 5: Solve for x
    x = 337,226,228.06/20,735.56
  6. Step 6: Final answer
    x = 16,263.18

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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.