Home / 20,256.63-27,955.56-11,305.88

Finding the Fourth Proportional to 20,256.63, 27,955.56 and 11,305.88

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Solution

The fourth proportional to 20,256.63, 27,955.56 and 11,305.88 is: 15,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.63 : 27,955.56 = 11,305.88 : x
  2. Step 2: Convert to fraction form
    20,256.63/27,955.56 = 11,305.88/x
  3. Step 3: Cross multiply
    20,256.63x = 27,955.56 × 11,305.88
  4. Step 4: Simplify right side
    20,256.63x = 316,062,118.75
  5. Step 5: Solve for x
    x = 316,062,118.75/20,256.63
  6. Step 6: Final answer
    x = 15,602.90

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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.