Home / 20,450.15-28,222.02-11,497.63

Finding the Fourth Proportional to 20,450.15, 28,222.02 and 11,497.63

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Solution

The fourth proportional to 20,450.15, 28,222.02 and 11,497.63 is: 15,867.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.15 : 28,222.02 = 11,497.63 : x
  2. Step 2: Convert to fraction form
    20,450.15/28,222.02 = 11,497.63/x
  3. Step 3: Cross multiply
    20,450.15x = 28,222.02 × 11,497.63
  4. Step 4: Simplify right side
    20,450.15x = 324,486,273.26
  5. Step 5: Solve for x
    x = 324,486,273.26/20,450.15
  6. Step 6: Final answer
    x = 15,867.18

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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.