Home / 23,127.28-31,929.40-15,183.43

Finding the Fourth Proportional to 23,127.28, 31,929.40 and 15,183.43

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Solution

The fourth proportional to 23,127.28, 31,929.40 and 15,183.43 is: 20,962.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,127.28 : 31,929.40 = 15,183.43 : x
  2. Step 2: Convert to fraction form
    23,127.28/31,929.40 = 15,183.43/x
  3. Step 3: Cross multiply
    23,127.28x = 31,929.40 × 15,183.43
  4. Step 4: Simplify right side
    23,127.28x = 484,797,771.88
  5. Step 5: Solve for x
    x = 484,797,771.88/23,127.28
  6. Step 6: Final answer
    x = 20,962.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.