Home / 20,105.05-27,726.80-12,552.07

Finding the Fourth Proportional to 20,105.05, 27,726.80 and 12,552.07

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Solution

The fourth proportional to 20,105.05, 27,726.80 and 12,552.07 is: 17,310.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105.05 : 27,726.80 = 12,552.07 : x
  2. Step 2: Convert to fraction form
    20,105.05/27,726.80 = 12,552.07/x
  3. Step 3: Cross multiply
    20,105.05x = 27,726.80 × 12,552.07
  4. Step 4: Simplify right side
    20,105.05x = 348,028,649.47
  5. Step 5: Solve for x
    x = 348,028,649.47/20,105.05
  6. Step 6: Final answer
    x = 17,310.51

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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.