Home / 28,708.09-39,613.79-16,132.09

Finding the Fourth Proportional to 28,708.09, 39,613.79 and 16,132.09

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Solution

The fourth proportional to 28,708.09, 39,613.79 and 16,132.09 is: 22,260.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,708.09 : 39,613.79 = 16,132.09 : x
  2. Step 2: Convert to fraction form
    28,708.09/39,613.79 = 16,132.09/x
  3. Step 3: Cross multiply
    28,708.09x = 39,613.79 × 16,132.09
  4. Step 4: Simplify right side
    28,708.09x = 639,053,144.86
  5. Step 5: Solve for x
    x = 639,053,144.86/28,708.09
  6. Step 6: Final answer
    x = 22,260.39

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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.