Home / 28,725.14-39,636.36-16,147.46

Finding the Fourth Proportional to 28,725.14, 39,636.36 and 16,147.46

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Solution

The fourth proportional to 28,725.14, 39,636.36 and 16,147.46 is: 22,281.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.14 : 39,636.36 = 16,147.46 : x
  2. Step 2: Convert to fraction form
    28,725.14/39,636.36 = 16,147.46/x
  3. Step 3: Cross multiply
    28,725.14x = 39,636.36 × 16,147.46
  4. Step 4: Simplify right side
    28,725.14x = 640,026,537.65
  5. Step 5: Solve for x
    x = 640,026,537.65/28,725.14
  6. Step 6: Final answer
    x = 22,281.06

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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.