Home / 19,422.69-29,145.57-18,192.70

Finding the Fourth Proportional to 19,422.69, 29,145.57 and 18,192.70

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Solution

The fourth proportional to 19,422.69, 29,145.57 and 18,192.70 is: 27,299.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422.69 : 29,145.57 = 18,192.70 : x
  2. Step 2: Convert to fraction form
    19,422.69/29,145.57 = 18,192.70/x
  3. Step 3: Cross multiply
    19,422.69x = 29,145.57 × 18,192.70
  4. Step 4: Simplify right side
    19,422.69x = 530,236,611.34
  5. Step 5: Solve for x
    x = 530,236,611.34/19,422.69
  6. Step 6: Final answer
    x = 27,299.85

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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.