Home / 25,998.78-39,015.46-14,155.54

Finding the Fourth Proportional to 25,998.78, 39,015.46 and 14,155.54

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Solution

The fourth proportional to 25,998.78, 39,015.46 and 14,155.54 is: 21,242.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,998.78 : 39,015.46 = 14,155.54 : x
  2. Step 2: Convert to fraction form
    25,998.78/39,015.46 = 14,155.54/x
  3. Step 3: Cross multiply
    25,998.78x = 39,015.46 × 14,155.54
  4. Step 4: Simplify right side
    25,998.78x = 552,284,904.65
  5. Step 5: Solve for x
    x = 552,284,904.65/25,998.78
  6. Step 6: Final answer
    x = 21,242.72

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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.