Home / 27,118.80-40,676.76-8,649.36

Finding the Fourth Proportional to 27,118.80, 40,676.76 and 8,649.36

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Solution

The fourth proportional to 27,118.80, 40,676.76 and 8,649.36 is: 12,973.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,118.80 : 40,676.76 = 8,649.36 : x
  2. Step 2: Convert to fraction form
    27,118.80/40,676.76 = 8,649.36/x
  3. Step 3: Cross multiply
    27,118.80x = 40,676.76 × 8,649.36
  4. Step 4: Simplify right side
    27,118.80x = 351,827,940.87
  5. Step 5: Solve for x
    x = 351,827,940.87/27,118.80
  6. Step 6: Final answer
    x = 12,973.58

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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.