Home / 20,716.36-28,587.48-11,763.64

Finding the Fourth Proportional to 20,716.36, 28,587.48 and 11,763.64

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Solution

The fourth proportional to 20,716.36, 28,587.48 and 11,763.64 is: 16,233.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716.36 : 28,587.48 = 11,763.64 : x
  2. Step 2: Convert to fraction form
    20,716.36/28,587.48 = 11,763.64/x
  3. Step 3: Cross multiply
    20,716.36x = 28,587.48 × 11,763.64
  4. Step 4: Simplify right side
    20,716.36x = 336,292,823.23
  5. Step 5: Solve for x
    x = 336,292,823.23/20,716.36
  6. Step 6: Final answer
    x = 16,233.20

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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.