Home / 17,215.75-25,821.20-5,527.45

Finding the Fourth Proportional to 17,215.75, 25,821.20 and 5,527.45

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Solution

The fourth proportional to 17,215.75, 25,821.20 and 5,527.45 is: 8,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,215.75 : 25,821.20 = 5,527.45 : x
  2. Step 2: Convert to fraction form
    17,215.75/25,821.20 = 5,527.45/x
  3. Step 3: Cross multiply
    17,215.75x = 25,821.20 × 5,527.45
  4. Step 4: Simplify right side
    17,215.75x = 142,725,406.94
  5. Step 5: Solve for x
    x = 142,725,406.94/17,215.75
  6. Step 6: Final answer
    x = 8,290.40

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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.