Home / 20,261.57-27,956.49-11,758.76

Finding the Fourth Proportional to 20,261.57, 27,956.49 and 11,758.76

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Solution

The fourth proportional to 20,261.57, 27,956.49 and 11,758.76 is: 16,224.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261.57 : 27,956.49 = 11,758.76 : x
  2. Step 2: Convert to fraction form
    20,261.57/27,956.49 = 11,758.76/x
  3. Step 3: Cross multiply
    20,261.57x = 27,956.49 × 11,758.76
  4. Step 4: Simplify right side
    20,261.57x = 328,733,516.57
  5. Step 5: Solve for x
    x = 328,733,516.57/20,261.57
  6. Step 6: Final answer
    x = 16,224.49

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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.