Home / 20,267.94-27,982.56-13,905.18

Finding the Fourth Proportional to 20,267.94, 27,982.56 and 13,905.18

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Solution

The fourth proportional to 20,267.94, 27,982.56 and 13,905.18 is: 19,197.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,267.94 : 27,982.56 = 13,905.18 : x
  2. Step 2: Convert to fraction form
    20,267.94/27,982.56 = 13,905.18/x
  3. Step 3: Cross multiply
    20,267.94x = 27,982.56 × 13,905.18
  4. Step 4: Simplify right side
    20,267.94x = 389,102,533.66
  5. Step 5: Solve for x
    x = 389,102,533.66/20,267.94
  6. Step 6: Final answer
    x = 19,197.93

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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.