Home / 25,517.97-38,277.81-8,879.40

Finding the Fourth Proportional to 25,517.97, 38,277.81 and 8,879.40

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Solution

The fourth proportional to 25,517.97, 38,277.81 and 8,879.40 is: 13,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,517.97 : 38,277.81 = 8,879.40 : x
  2. Step 2: Convert to fraction form
    25,517.97/38,277.81 = 8,879.40/x
  3. Step 3: Cross multiply
    25,517.97x = 38,277.81 × 8,879.40
  4. Step 4: Simplify right side
    25,517.97x = 339,883,986.11
  5. Step 5: Solve for x
    x = 339,883,986.11/25,517.97
  6. Step 6: Final answer
    x = 13,319.40

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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.