Home / 27,847.62-38,431.75-15,910.70

Finding the Fourth Proportional to 27,847.62, 38,431.75 and 15,910.70

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Solution

The fourth proportional to 27,847.62, 38,431.75 and 15,910.70 is: 21,957.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.62 : 38,431.75 = 15,910.70 : x
  2. Step 2: Convert to fraction form
    27,847.62/38,431.75 = 15,910.70/x
  3. Step 3: Cross multiply
    27,847.62x = 38,431.75 × 15,910.70
  4. Step 4: Simplify right side
    27,847.62x = 611,475,852.57
  5. Step 5: Solve for x
    x = 611,475,852.57/27,847.62
  6. Step 6: Final answer
    x = 21,957.93

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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.