Home / 27,200.07-40,720.86-20,211.08

Finding the Fourth Proportional to 27,200.07, 40,720.86 and 20,211.08

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Solution

The fourth proportional to 27,200.07, 40,720.86 and 20,211.08 is: 30,257.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,200.07 : 40,720.86 = 20,211.08 : x
  2. Step 2: Convert to fraction form
    27,200.07/40,720.86 = 20,211.08/x
  3. Step 3: Cross multiply
    27,200.07x = 40,720.86 × 20,211.08
  4. Step 4: Simplify right side
    27,200.07x = 823,012,355.52
  5. Step 5: Solve for x
    x = 823,012,355.52/27,200.07
  6. Step 6: Final answer
    x = 30,257.73

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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.