Home / 19,431.28-29,122.94-10,065.91

Finding the Fourth Proportional to 19,431.28, 29,122.94 and 10,065.91

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Solution

The fourth proportional to 19,431.28, 29,122.94 and 10,065.91 is: 15,086.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.28 : 29,122.94 = 10,065.91 : x
  2. Step 2: Convert to fraction form
    19,431.28/29,122.94 = 10,065.91/x
  3. Step 3: Cross multiply
    19,431.28x = 29,122.94 × 10,065.91
  4. Step 4: Simplify right side
    19,431.28x = 293,148,858.98
  5. Step 5: Solve for x
    x = 293,148,858.98/19,431.28
  6. Step 6: Final answer
    x = 15,086.44

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1.5x scale

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.