Home / 27,215.68-40,823.60-8,760.64

Finding the Fourth Proportional to 27,215.68, 40,823.60 and 8,760.64

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Solution

The fourth proportional to 27,215.68, 40,823.60 and 8,760.64 is: 13,140.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,215.68 : 40,823.60 = 8,760.64 : x
  2. Step 2: Convert to fraction form
    27,215.68/40,823.60 = 8,760.64/x
  3. Step 3: Cross multiply
    27,215.68x = 40,823.60 × 8,760.64
  4. Step 4: Simplify right side
    27,215.68x = 357,640,863.10
  5. Step 5: Solve for x
    x = 357,640,863.10/27,215.68
  6. Step 6: Final answer
    x = 13,140.99

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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.