Home / 19,409.40-29,048.49-16,128.90

Finding the Fourth Proportional to 19,409.40, 29,048.49 and 16,128.90

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Solution

The fourth proportional to 19,409.40, 29,048.49 and 16,128.90 is: 24,138.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,409.40 : 29,048.49 = 16,128.90 : x
  2. Step 2: Convert to fraction form
    19,409.40/29,048.49 = 16,128.90/x
  3. Step 3: Cross multiply
    19,409.40x = 29,048.49 × 16,128.90
  4. Step 4: Simplify right side
    19,409.40x = 468,520,190.36
  5. Step 5: Solve for x
    x = 468,520,190.36/19,409.40
  6. Step 6: Final answer
    x = 24,138.83

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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.