Home / 19,815.07-29,664.99-15,419.20

Finding the Fourth Proportional to 19,815.07, 29,664.99 and 15,419.20

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Solution

The fourth proportional to 19,815.07, 29,664.99 and 15,419.20 is: 23,083.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.07 : 29,664.99 = 15,419.20 : x
  2. Step 2: Convert to fraction form
    19,815.07/29,664.99 = 15,419.20/x
  3. Step 3: Cross multiply
    19,815.07x = 29,664.99 × 15,419.20
  4. Step 4: Simplify right side
    19,815.07x = 457,410,413.81
  5. Step 5: Solve for x
    x = 457,410,413.81/19,815.07
  6. Step 6: Final answer
    x = 23,083.97

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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.