Home / 20,156.58-27,816.04-11,204.91

Finding the Fourth Proportional to 20,156.58, 27,816.04 and 11,204.91

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Solution

The fourth proportional to 20,156.58, 27,816.04 and 11,204.91 is: 15,462.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.58 : 27,816.04 = 11,204.91 : x
  2. Step 2: Convert to fraction form
    20,156.58/27,816.04 = 11,204.91/x
  3. Step 3: Cross multiply
    20,156.58x = 27,816.04 × 11,204.91
  4. Step 4: Simplify right side
    20,156.58x = 311,676,224.76
  5. Step 5: Solve for x
    x = 311,676,224.76/20,156.58
  6. Step 6: Final answer
    x = 15,462.75

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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.