Home / 19,982.96-27,574.66-12,800.15

Finding the Fourth Proportional to 19,982.96, 27,574.66 and 12,800.15

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Solution

The fourth proportional to 19,982.96, 27,574.66 and 12,800.15 is: 17,663.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.96 : 27,574.66 = 12,800.15 : x
  2. Step 2: Convert to fraction form
    19,982.96/27,574.66 = 12,800.15/x
  3. Step 3: Cross multiply
    19,982.96x = 27,574.66 × 12,800.15
  4. Step 4: Simplify right side
    19,982.96x = 352,959,646.33
  5. Step 5: Solve for x
    x = 352,959,646.33/19,982.96
  6. Step 6: Final answer
    x = 17,663.03

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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.