Home / 28,237.95-38,969.60-16,905.26

Finding the Fourth Proportional to 28,237.95, 38,969.60 and 16,905.26

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Solution

The fourth proportional to 28,237.95, 38,969.60 and 16,905.26 is: 23,329.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,237.95 : 38,969.60 = 16,905.26 : x
  2. Step 2: Convert to fraction form
    28,237.95/38,969.60 = 16,905.26/x
  3. Step 3: Cross multiply
    28,237.95x = 38,969.60 × 16,905.26
  4. Step 4: Simplify right side
    28,237.95x = 658,790,940.72
  5. Step 5: Solve for x
    x = 658,790,940.72/28,237.95
  6. Step 6: Final answer
    x = 23,329.98

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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.