Home / 19,443.62-29,121.66-13,626.20

Finding the Fourth Proportional to 19,443.62, 29,121.66 and 13,626.20

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Solution

The fourth proportional to 19,443.62, 29,121.66 and 13,626.20 is: 20,408.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,443.62 : 29,121.66 = 13,626.20 : x
  2. Step 2: Convert to fraction form
    19,443.62/29,121.66 = 13,626.20/x
  3. Step 3: Cross multiply
    19,443.62x = 29,121.66 × 13,626.20
  4. Step 4: Simplify right side
    19,443.62x = 396,817,417.88
  5. Step 5: Solve for x
    x = 396,817,417.88/19,443.62
  6. Step 6: Final answer
    x = 20,408.62

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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.