Home / 20,156.04-27,817.59-11,204.39

Finding the Fourth Proportional to 20,156.04, 27,817.59 and 11,204.39

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Solution

The fourth proportional to 20,156.04, 27,817.59 and 11,204.39 is: 15,463.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.04 : 27,817.59 = 11,204.39 : x
  2. Step 2: Convert to fraction form
    20,156.04/27,817.59 = 11,204.39/x
  3. Step 3: Cross multiply
    20,156.04x = 27,817.59 × 11,204.39
  4. Step 4: Simplify right side
    20,156.04x = 311,679,238.78
  5. Step 5: Solve for x
    x = 311,679,238.78/20,156.04
  6. Step 6: Final answer
    x = 15,463.32

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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.