Home / 28,123.93-38,804.70-16,791.36

Finding the Fourth Proportional to 28,123.93, 38,804.70 and 16,791.36

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Solution

The fourth proportional to 28,123.93, 38,804.70 and 16,791.36 is: 23,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,123.93 : 38,804.70 = 16,791.36 : x
  2. Step 2: Convert to fraction form
    28,123.93/38,804.70 = 16,791.36/x
  3. Step 3: Cross multiply
    28,123.93x = 38,804.70 × 16,791.36
  4. Step 4: Simplify right side
    28,123.93x = 651,583,687.39
  5. Step 5: Solve for x
    x = 651,583,687.39/28,123.93
  6. Step 6: Final answer
    x = 23,168.30

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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.