Home / 27,622.64-38,107.10-18,666.88

Finding the Fourth Proportional to 27,622.64, 38,107.10 and 18,666.88

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Solution

The fourth proportional to 27,622.64, 38,107.10 and 18,666.88 is: 25,752.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,622.64 : 38,107.10 = 18,666.88 : x
  2. Step 2: Convert to fraction form
    27,622.64/38,107.10 = 18,666.88/x
  3. Step 3: Cross multiply
    27,622.64x = 38,107.10 × 18,666.88
  4. Step 4: Simplify right side
    27,622.64x = 711,340,662.85
  5. Step 5: Solve for x
    x = 711,340,662.85/27,622.64
  6. Step 6: Final answer
    x = 25,752.09

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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.