Home / 20,256.22-27,952.80-11,757.92

Finding the Fourth Proportional to 20,256.22, 27,952.80 and 11,757.92

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Solution

The fourth proportional to 20,256.22, 27,952.80 and 11,757.92 is: 16,225.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.22 : 27,952.80 = 11,757.92 : x
  2. Step 2: Convert to fraction form
    20,256.22/27,952.80 = 11,757.92/x
  3. Step 3: Cross multiply
    20,256.22x = 27,952.80 × 11,757.92
  4. Step 4: Simplify right side
    20,256.22x = 328,666,786.18
  5. Step 5: Solve for x
    x = 328,666,786.18/20,256.22
  6. Step 6: Final answer
    x = 16,225.47

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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.