Home / 28,940.50-43,389.60-19,557.19

Finding the Fourth Proportional to 28,940.50, 43,389.60 and 19,557.19

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Solution

The fourth proportional to 28,940.50, 43,389.60 and 19,557.19 is: 29,321.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,940.50 : 43,389.60 = 19,557.19 : x
  2. Step 2: Convert to fraction form
    28,940.50/43,389.60 = 19,557.19/x
  3. Step 3: Cross multiply
    28,940.50x = 43,389.60 × 19,557.19
  4. Step 4: Simplify right side
    28,940.50x = 848,578,651.22
  5. Step 5: Solve for x
    x = 848,578,651.22/28,940.50
  6. Step 6: Final answer
    x = 29,321.49

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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.