Home / 28,722.42-39,636.90-16,147.08

Finding the Fourth Proportional to 28,722.42, 39,636.90 and 16,147.08

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Solution

The fourth proportional to 28,722.42, 39,636.90 and 16,147.08 is: 22,282.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.42 : 39,636.90 = 16,147.08 : x
  2. Step 2: Convert to fraction form
    28,722.42/39,636.90 = 16,147.08/x
  3. Step 3: Cross multiply
    28,722.42x = 39,636.90 × 16,147.08
  4. Step 4: Simplify right side
    28,722.42x = 640,020,195.25
  5. Step 5: Solve for x
    x = 640,020,195.25/28,722.42
  6. Step 6: Final answer
    x = 22,282.95

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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.