Home / 27,864.18-38,451.54-15,926.82

Finding the Fourth Proportional to 27,864.18, 38,451.54 and 15,926.82

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Solution

The fourth proportional to 27,864.18, 38,451.54 and 15,926.82 is: 21,978.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,864.18 : 38,451.54 = 15,926.82 : x
  2. Step 2: Convert to fraction form
    27,864.18/38,451.54 = 15,926.82/x
  3. Step 3: Cross multiply
    27,864.18x = 38,451.54 × 15,926.82
  4. Step 4: Simplify right side
    27,864.18x = 612,410,756.30
  5. Step 5: Solve for x
    x = 612,410,756.30/27,864.18
  6. Step 6: Final answer
    x = 21,978.42

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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.