Home / 28,725.80-43,121.10-17,045.60

Finding the Fourth Proportional to 28,725.80, 43,121.10 and 17,045.60

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Solution

The fourth proportional to 28,725.80, 43,121.10 and 17,045.60 is: 25,587.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.80 : 43,121.10 = 17,045.60 : x
  2. Step 2: Convert to fraction form
    28,725.80/43,121.10 = 17,045.60/x
  3. Step 3: Cross multiply
    28,725.80x = 43,121.10 × 17,045.60
  4. Step 4: Simplify right side
    28,725.80x = 735,025,022.16
  5. Step 5: Solve for x
    x = 735,025,022.16/28,725.80
  6. Step 6: Final answer
    x = 25,587.63

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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.