Home / 27,861.37-38,449.49-15,926.29

Finding the Fourth Proportional to 27,861.37, 38,449.49 and 15,926.29

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Solution

The fourth proportional to 27,861.37, 38,449.49 and 15,926.29 is: 21,978.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,861.37 : 38,449.49 = 15,926.29 : x
  2. Step 2: Convert to fraction form
    27,861.37/38,449.49 = 15,926.29/x
  3. Step 3: Cross multiply
    27,861.37x = 38,449.49 × 15,926.29
  4. Step 4: Simplify right side
    27,861.37x = 612,357,552.34
  5. Step 5: Solve for x
    x = 612,357,552.34/27,861.37
  6. Step 6: Final answer
    x = 21,978.73

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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.