Home / 19,617.66-27,078.30-13,333.68

Finding the Fourth Proportional to 19,617.66, 27,078.30 and 13,333.68

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Solution

The fourth proportional to 19,617.66, 27,078.30 and 13,333.68 is: 18,404.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,617.66 : 27,078.30 = 13,333.68 : x
  2. Step 2: Convert to fraction form
    19,617.66/27,078.30 = 13,333.68/x
  3. Step 3: Cross multiply
    19,617.66x = 27,078.30 × 13,333.68
  4. Step 4: Simplify right side
    19,617.66x = 361,053,387.14
  5. Step 5: Solve for x
    x = 361,053,387.14/19,617.66
  6. Step 6: Final answer
    x = 18,404.51

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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.