Home / 28,722.39-39,636.51-16,147.14

Finding the Fourth Proportional to 28,722.39, 39,636.51 and 16,147.14

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Solution

The fourth proportional to 28,722.39, 39,636.51 and 16,147.14 is: 22,282.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.39 : 39,636.51 = 16,147.14 : x
  2. Step 2: Convert to fraction form
    28,722.39/39,636.51 = 16,147.14/x
  3. Step 3: Cross multiply
    28,722.39x = 39,636.51 × 16,147.14
  4. Step 4: Simplify right side
    28,722.39x = 640,016,276.08
  5. Step 5: Solve for x
    x = 640,016,276.08/28,722.39
  6. Step 6: Final answer
    x = 22,282.83

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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.