Home / 17,315.20-25,972.80-5,629.60

Finding the Fourth Proportional to 17,315.20, 25,972.80 and 5,629.60

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Solution

The fourth proportional to 17,315.20, 25,972.80 and 5,629.60 is: 8,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,315.20 : 25,972.80 = 5,629.60 : x
  2. Step 2: Convert to fraction form
    17,315.20/25,972.80 = 5,629.60/x
  3. Step 3: Cross multiply
    17,315.20x = 25,972.80 × 5,629.60
  4. Step 4: Simplify right side
    17,315.20x = 146,216,474.88
  5. Step 5: Solve for x
    x = 146,216,474.88/17,315.20
  6. Step 6: Final answer
    x = 8,444.40

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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.