Home / 19,188.88-28,729.55-14,494.12

Finding the Fourth Proportional to 19,188.88, 28,729.55 and 14,494.12

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Solution

The fourth proportional to 19,188.88, 28,729.55 and 14,494.12 is: 21,700.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188.88 : 28,729.55 = 14,494.12 : x
  2. Step 2: Convert to fraction form
    19,188.88/28,729.55 = 14,494.12/x
  3. Step 3: Cross multiply
    19,188.88x = 28,729.55 × 14,494.12
  4. Step 4: Simplify right side
    19,188.88x = 416,409,400.95
  5. Step 5: Solve for x
    x = 416,409,400.95/19,188.88
  6. Step 6: Final answer
    x = 21,700.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.