Home / 19,689.12-29,381.31-17,586.54

Finding the Fourth Proportional to 19,689.12, 29,381.31 and 17,586.54

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Solution

The fourth proportional to 19,689.12, 29,381.31 and 17,586.54 is: 26,243.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.12 : 29,381.31 = 17,586.54 : x
  2. Step 2: Convert to fraction form
    19,689.12/29,381.31 = 17,586.54/x
  3. Step 3: Cross multiply
    19,689.12x = 29,381.31 × 17,586.54
  4. Step 4: Simplify right side
    19,689.12x = 516,715,583.57
  5. Step 5: Solve for x
    x = 516,715,583.57/19,689.12
  6. Step 6: Final answer
    x = 26,243.71

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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.