Home / 28,630.98-42,945.95-11,760.41

Finding the Fourth Proportional to 28,630.98, 42,945.95 and 11,760.41

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Solution

The fourth proportional to 28,630.98, 42,945.95 and 11,760.41 is: 17,640.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,630.98 : 42,945.95 = 11,760.41 : x
  2. Step 2: Convert to fraction form
    28,630.98/42,945.95 = 11,760.41/x
  3. Step 3: Cross multiply
    28,630.98x = 42,945.95 × 11,760.41
  4. Step 4: Simplify right side
    28,630.98x = 505,061,706.31
  5. Step 5: Solve for x
    x = 505,061,706.31/28,630.98
  6. Step 6: Final answer
    x = 17,640.39

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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.