Home / 20,145.58-27,802.29-11,649.22

Finding the Fourth Proportional to 20,145.58, 27,802.29 and 11,649.22

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Solution

The fourth proportional to 20,145.58, 27,802.29 and 11,649.22 is: 16,076.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145.58 : 27,802.29 = 11,649.22 : x
  2. Step 2: Convert to fraction form
    20,145.58/27,802.29 = 11,649.22/x
  3. Step 3: Cross multiply
    20,145.58x = 27,802.29 × 11,649.22
  4. Step 4: Simplify right side
    20,145.58x = 323,874,992.71
  5. Step 5: Solve for x
    x = 323,874,992.71/20,145.58
  6. Step 6: Final answer
    x = 16,076.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.