Home / 27,618.64-38,101.59-18,662.88

Finding the Fourth Proportional to 27,618.64, 38,101.59 and 18,662.88

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Solution

The fourth proportional to 27,618.64, 38,101.59 and 18,662.88 is: 25,746.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,618.64 : 38,101.59 = 18,662.88 : x
  2. Step 2: Convert to fraction form
    27,618.64/38,101.59 = 18,662.88/x
  3. Step 3: Cross multiply
    27,618.64x = 38,101.59 × 18,662.88
  4. Step 4: Simplify right side
    27,618.64x = 711,085,401.98
  5. Step 5: Solve for x
    x = 711,085,401.98/27,618.64
  6. Step 6: Final answer
    x = 25,746.58

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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.