Home / 19,644.68-27,119.94-15,158.72

Finding the Fourth Proportional to 19,644.68, 27,119.94 and 15,158.72

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Solution

The fourth proportional to 19,644.68, 27,119.94 and 15,158.72 is: 20,926.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,644.68 : 27,119.94 = 15,158.72 : x
  2. Step 2: Convert to fraction form
    19,644.68/27,119.94 = 15,158.72/x
  3. Step 3: Cross multiply
    19,644.68x = 27,119.94 × 15,158.72
  4. Step 4: Simplify right side
    19,644.68x = 411,103,576.88
  5. Step 5: Solve for x
    x = 411,103,576.88/19,644.68
  6. Step 6: Final answer
    x = 20,926.97

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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.