Home / 19,768.20-29,626.11-12,355.08

Finding the Fourth Proportional to 19,768.20, 29,626.11 and 12,355.08

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Solution

The fourth proportional to 19,768.20, 29,626.11 and 12,355.08 is: 18,516.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,768.20 : 29,626.11 = 12,355.08 : x
  2. Step 2: Convert to fraction form
    19,768.20/29,626.11 = 12,355.08/x
  3. Step 3: Cross multiply
    19,768.20x = 29,626.11 × 12,355.08
  4. Step 4: Simplify right side
    19,768.20x = 366,032,959.14
  5. Step 5: Solve for x
    x = 366,032,959.14/19,768.20
  6. Step 6: Final answer
    x = 18,516.25

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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.