Home / 20,616.24-30,929.58-11,253.72

Finding the Fourth Proportional to 20,616.24, 30,929.58 and 11,253.72

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Solution

The fourth proportional to 20,616.24, 30,929.58 and 11,253.72 is: 16,883.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.24 : 30,929.58 = 11,253.72 : x
  2. Step 2: Convert to fraction form
    20,616.24/30,929.58 = 11,253.72/x
  3. Step 3: Cross multiply
    20,616.24x = 30,929.58 × 11,253.72
  4. Step 4: Simplify right side
    20,616.24x = 348,072,833.04
  5. Step 5: Solve for x
    x = 348,072,833.04/20,616.24
  6. Step 6: Final answer
    x = 16,883.43

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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.