Home / 18,912.17-28,368.26-18,884.84

Finding the Fourth Proportional to 18,912.17, 28,368.26 and 18,884.84

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Solution

The fourth proportional to 18,912.17, 28,368.26 and 18,884.84 is: 28,327.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,912.17 : 28,368.26 = 18,884.84 : x
  2. Step 2: Convert to fraction form
    18,912.17/28,368.26 = 18,884.84/x
  3. Step 3: Cross multiply
    18,912.17x = 28,368.26 × 18,884.84
  4. Step 4: Simplify right side
    18,912.17x = 535,729,814.91
  5. Step 5: Solve for x
    x = 535,729,814.91/18,912.17
  6. Step 6: Final answer
    x = 28,327.26

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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.