Home / 27,847.76-38,431.95-15,910.85

Finding the Fourth Proportional to 27,847.76, 38,431.95 and 15,910.85

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Solution

The fourth proportional to 27,847.76, 38,431.95 and 15,910.85 is: 21,958.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.76 : 38,431.95 = 15,910.85 : x
  2. Step 2: Convert to fraction form
    27,847.76/38,431.95 = 15,910.85/x
  3. Step 3: Cross multiply
    27,847.76x = 38,431.95 × 15,910.85
  4. Step 4: Simplify right side
    27,847.76x = 611,484,799.50
  5. Step 5: Solve for x
    x = 611,484,799.50/27,847.76
  6. Step 6: Final answer
    x = 21,958.13

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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.