Home / 19,318.68-28,998.54-17,111.88

Finding the Fourth Proportional to 19,318.68, 28,998.54 and 17,111.88

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Solution

The fourth proportional to 19,318.68, 28,998.54 and 17,111.88 is: 25,686.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318.68 : 28,998.54 = 17,111.88 : x
  2. Step 2: Convert to fraction form
    19,318.68/28,998.54 = 17,111.88/x
  3. Step 3: Cross multiply
    19,318.68x = 28,998.54 × 17,111.88
  4. Step 4: Simplify right side
    19,318.68x = 496,219,536.66
  5. Step 5: Solve for x
    x = 496,219,536.66/19,318.68
  6. Step 6: Final answer
    x = 25,686.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.