Home / 19,991.52-29,825.64-17,998.74

Finding the Fourth Proportional to 19,991.52, 29,825.64 and 17,998.74

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Solution

The fourth proportional to 19,991.52, 29,825.64 and 17,998.74 is: 26,852.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.52 : 29,825.64 = 17,998.74 : x
  2. Step 2: Convert to fraction form
    19,991.52/29,825.64 = 17,998.74/x
  3. Step 3: Cross multiply
    19,991.52x = 29,825.64 × 17,998.74
  4. Step 4: Simplify right side
    19,991.52x = 536,823,939.69
  5. Step 5: Solve for x
    x = 536,823,939.69/19,991.52
  6. Step 6: Final answer
    x = 26,852.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.