Home / 27,461.52-41,185.80-12,661.20

Finding the Fourth Proportional to 27,461.52, 41,185.80 and 12,661.20

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Solution

The fourth proportional to 27,461.52, 41,185.80 and 12,661.20 is: 18,988.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,461.52 : 41,185.80 = 12,661.20 : x
  2. Step 2: Convert to fraction form
    27,461.52/41,185.80 = 12,661.20/x
  3. Step 3: Cross multiply
    27,461.52x = 41,185.80 × 12,661.20
  4. Step 4: Simplify right side
    27,461.52x = 521,461,650.96
  5. Step 5: Solve for x
    x = 521,461,650.96/27,461.52
  6. Step 6: Final answer
    x = 18,988.81

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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.