Home / 20,735.64-28,615.25-11,786.11

Finding the Fourth Proportional to 20,735.64, 28,615.25 and 11,786.11

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Solution

The fourth proportional to 20,735.64, 28,615.25 and 11,786.11 is: 16,264.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.64 : 28,615.25 = 11,786.11 : x
  2. Step 2: Convert to fraction form
    20,735.64/28,615.25 = 11,786.11/x
  3. Step 3: Cross multiply
    20,735.64x = 28,615.25 × 11,786.11
  4. Step 4: Simplify right side
    20,735.64x = 337,262,484.18
  5. Step 5: Solve for x
    x = 337,262,484.18/20,735.64
  6. Step 6: Final answer
    x = 16,264.87

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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.