Home / 19,781.48-27,297.62-10,828.76

Finding the Fourth Proportional to 19,781.48, 27,297.62 and 10,828.76

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Solution

The fourth proportional to 19,781.48, 27,297.62 and 10,828.76 is: 14,943.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,781.48 : 27,297.62 = 10,828.76 : x
  2. Step 2: Convert to fraction form
    19,781.48/27,297.62 = 10,828.76/x
  3. Step 3: Cross multiply
    19,781.48x = 27,297.62 × 10,828.76
  4. Step 4: Simplify right side
    19,781.48x = 295,599,375.55
  5. Step 5: Solve for x
    x = 295,599,375.55/19,781.48
  6. Step 6: Final answer
    x = 14,943.24

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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.