Home / 28,479.61-39,293.26-16,540.64

Finding the Fourth Proportional to 28,479.61, 39,293.26 and 16,540.64

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Solution

The fourth proportional to 28,479.61, 39,293.26 and 16,540.64 is: 22,821.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479.61 : 39,293.26 = 16,540.64 : x
  2. Step 2: Convert to fraction form
    28,479.61/39,293.26 = 16,540.64/x
  3. Step 3: Cross multiply
    28,479.61x = 39,293.26 × 16,540.64
  4. Step 4: Simplify right side
    28,479.61x = 649,935,668.09
  5. Step 5: Solve for x
    x = 649,935,668.09/28,479.61
  6. Step 6: Final answer
    x = 22,821.09

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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.