Home / 19,665.06-29,429.73-12,165.54

Finding the Fourth Proportional to 19,665.06, 29,429.73 and 12,165.54

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Solution

The fourth proportional to 19,665.06, 29,429.73 and 12,165.54 is: 18,206.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,665.06 : 29,429.73 = 12,165.54 : x
  2. Step 2: Convert to fraction form
    19,665.06/29,429.73 = 12,165.54/x
  3. Step 3: Cross multiply
    19,665.06x = 29,429.73 × 12,165.54
  4. Step 4: Simplify right side
    19,665.06x = 358,028,557.50
  5. Step 5: Solve for x
    x = 358,028,557.50/19,665.06
  6. Step 6: Final answer
    x = 18,206.33

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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.