Home / 27,992.12-38,628.96-15,416.88

Finding the Fourth Proportional to 27,992.12, 38,628.96 and 15,416.88

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Solution

The fourth proportional to 27,992.12, 38,628.96 and 15,416.88 is: 21,275.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,992.12 : 38,628.96 = 15,416.88 : x
  2. Step 2: Convert to fraction form
    27,992.12/38,628.96 = 15,416.88/x
  3. Step 3: Cross multiply
    27,992.12x = 38,628.96 × 15,416.88
  4. Step 4: Simplify right side
    27,992.12x = 595,538,040.84
  5. Step 5: Solve for x
    x = 595,538,040.84/27,992.12
  6. Step 6: Final answer
    x = 21,275.20

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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.