Home / 20,086.32-27,719.10-11,133.84

Finding the Fourth Proportional to 20,086.32, 27,719.10 and 11,133.84

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Solution

The fourth proportional to 20,086.32, 27,719.10 and 11,133.84 is: 15,364.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.32 : 27,719.10 = 11,133.84 : x
  2. Step 2: Convert to fraction form
    20,086.32/27,719.10 = 11,133.84/x
  3. Step 3: Cross multiply
    20,086.32x = 27,719.10 × 11,133.84
  4. Step 4: Simplify right side
    20,086.32x = 308,620,024.34
  5. Step 5: Solve for x
    x = 308,620,024.34/20,086.32
  6. Step 6: Final answer
    x = 15,364.69

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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.