Home / 27,770.40-38,322.84-15,195

Finding the Fourth Proportional to 27,770.40, 38,322.84 and 15,195

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Solution

The fourth proportional to 27,770.40, 38,322.84 and 15,195 is: 20,968.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,770.40 : 38,322.84 = 15,195 : x
  2. Step 2: Convert to fraction form
    27,770.40/38,322.84 = 15,195/x
  3. Step 3: Cross multiply
    27,770.40x = 38,322.84 × 15,195
  4. Step 4: Simplify right side
    27,770.40x = 582,315,553.80
  5. Step 5: Solve for x
    x = 582,315,553.80/27,770.40
  6. Step 6: Final answer
    x = 20,968.93

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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.