Home / 25,441.24-38,155.64-19,880.79

Finding the Fourth Proportional to 25,441.24, 38,155.64 and 19,880.79

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Solution

The fourth proportional to 25,441.24, 38,155.64 and 19,880.79 is: 29,816.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,441.24 : 38,155.64 = 19,880.79 : x
  2. Step 2: Convert to fraction form
    25,441.24/38,155.64 = 19,880.79/x
  3. Step 3: Cross multiply
    25,441.24x = 38,155.64 × 19,880.79
  4. Step 4: Simplify right side
    25,441.24x = 758,564,166.75
  5. Step 5: Solve for x
    x = 758,564,166.75/25,441.24
  6. Step 6: Final answer
    x = 29,816.32

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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.