Home / 27,148.12-40,722.66-8,680.12

Finding the Fourth Proportional to 27,148.12, 40,722.66 and 8,680.12

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Solution

The fourth proportional to 27,148.12, 40,722.66 and 8,680.12 is: 13,020.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,148.12 : 40,722.66 = 8,680.12 : x
  2. Step 2: Convert to fraction form
    27,148.12/40,722.66 = 8,680.12/x
  3. Step 3: Cross multiply
    27,148.12x = 40,722.66 × 8,680.12
  4. Step 4: Simplify right side
    27,148.12x = 353,477,575.52
  5. Step 5: Solve for x
    x = 353,477,575.52/27,148.12
  6. Step 6: Final answer
    x = 13,020.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.