Home / 27,140.27-40,708.46-8,419.83

Finding the Fourth Proportional to 27,140.27, 40,708.46 and 8,419.83

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Solution

The fourth proportional to 27,140.27, 40,708.46 and 8,419.83 is: 12,629.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,140.27 : 40,708.46 = 8,419.83 : x
  2. Step 2: Convert to fraction form
    27,140.27/40,708.46 = 8,419.83/x
  3. Step 3: Cross multiply
    27,140.27x = 40,708.46 × 8,419.83
  4. Step 4: Simplify right side
    27,140.27x = 342,758,312.76
  5. Step 5: Solve for x
    x = 342,758,312.76/27,140.27
  6. Step 6: Final answer
    x = 12,629.14

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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.