Home / 20,267.64-27,969.37-11,315.14

Finding the Fourth Proportional to 20,267.64, 27,969.37 and 11,315.14

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Solution

The fourth proportional to 20,267.64, 27,969.37 and 11,315.14 is: 15,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,267.64 : 27,969.37 = 11,315.14 : x
  2. Step 2: Convert to fraction form
    20,267.64/27,969.37 = 11,315.14/x
  3. Step 3: Cross multiply
    20,267.64x = 27,969.37 × 11,315.14
  4. Step 4: Simplify right side
    20,267.64x = 316,477,239.05
  5. Step 5: Solve for x
    x = 316,477,239.05/20,267.64
  6. Step 6: Final answer
    x = 15,614.90

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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.