Home / 20,477.75-28,258.08-11,524.88

Finding the Fourth Proportional to 20,477.75, 28,258.08 and 11,524.88

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Solution

The fourth proportional to 20,477.75, 28,258.08 and 11,524.88 is: 15,903.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477.75 : 28,258.08 = 11,524.88 : x
  2. Step 2: Convert to fraction form
    20,477.75/28,258.08 = 11,524.88/x
  3. Step 3: Cross multiply
    20,477.75x = 28,258.08 × 11,524.88
  4. Step 4: Simplify right side
    20,477.75x = 325,670,839.74
  5. Step 5: Solve for x
    x = 325,670,839.74/20,477.75
  6. Step 6: Final answer
    x = 15,903.65

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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.