Home / 20,236.68-27,929.52-11,853.36

Finding the Fourth Proportional to 20,236.68, 27,929.52 and 11,853.36

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Solution

The fourth proportional to 20,236.68, 27,929.52 and 11,853.36 is: 16,359.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.68 : 27,929.52 = 11,853.36 : x
  2. Step 2: Convert to fraction form
    20,236.68/27,929.52 = 11,853.36/x
  3. Step 3: Cross multiply
    20,236.68x = 27,929.52 × 11,853.36
  4. Step 4: Simplify right side
    20,236.68x = 331,058,655.19
  5. Step 5: Solve for x
    x = 331,058,655.19/20,236.68
  6. Step 6: Final answer
    x = 16,359.34

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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.