Home / 27,818.20-38,388.86-15,071.09

Finding the Fourth Proportional to 27,818.20, 38,388.86 and 15,071.09

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Solution

The fourth proportional to 27,818.20, 38,388.86 and 15,071.09 is: 20,797.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,818.20 : 38,388.86 = 15,071.09 : x
  2. Step 2: Convert to fraction form
    27,818.20/38,388.86 = 15,071.09/x
  3. Step 3: Cross multiply
    27,818.20x = 38,388.86 × 15,071.09
  4. Step 4: Simplify right side
    27,818.20x = 578,561,964.06
  5. Step 5: Solve for x
    x = 578,561,964.06/27,818.20
  6. Step 6: Final answer
    x = 20,797.97

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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.