Home / 20,256.88-27,953.76-11,873.20

Finding the Fourth Proportional to 20,256.88, 27,953.76 and 11,873.20

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Solution

The fourth proportional to 20,256.88, 27,953.76 and 11,873.20 is: 16,384.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.88 : 27,953.76 = 11,873.20 : x
  2. Step 2: Convert to fraction form
    20,256.88/27,953.76 = 11,873.20/x
  3. Step 3: Cross multiply
    20,256.88x = 27,953.76 × 11,873.20
  4. Step 4: Simplify right side
    20,256.88x = 331,900,583.23
  5. Step 5: Solve for x
    x = 331,900,583.23/20,256.88
  6. Step 6: Final answer
    x = 16,384.59

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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.