Home / 27,131.49-40,698.59-8,424.27

Finding the Fourth Proportional to 27,131.49, 40,698.59 and 8,424.27

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Solution

The fourth proportional to 27,131.49, 40,698.59 and 8,424.27 is: 12,636.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,131.49 : 40,698.59 = 8,424.27 : x
  2. Step 2: Convert to fraction form
    27,131.49/40,698.59 = 8,424.27/x
  3. Step 3: Cross multiply
    27,131.49x = 40,698.59 × 8,424.27
  4. Step 4: Simplify right side
    27,131.49x = 342,855,868.66
  5. Step 5: Solve for x
    x = 342,855,868.66/27,131.49
  6. Step 6: Final answer
    x = 12,636.82

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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.