Home / 27,623.64-38,135.07-21,560.88

Finding the Fourth Proportional to 27,623.64, 38,135.07 and 21,560.88

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Solution

The fourth proportional to 27,623.64, 38,135.07 and 21,560.88 is: 29,765.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,623.64 : 38,135.07 = 21,560.88 : x
  2. Step 2: Convert to fraction form
    27,623.64/38,135.07 = 21,560.88/x
  3. Step 3: Cross multiply
    27,623.64x = 38,135.07 × 21,560.88
  4. Step 4: Simplify right side
    27,623.64x = 822,225,668.06
  5. Step 5: Solve for x
    x = 822,225,668.06/27,623.64
  6. Step 6: Final answer
    x = 29,765.29

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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.