Home / 20,256.58-27,955.44-11,305.81

Finding the Fourth Proportional to 20,256.58, 27,955.44 and 11,305.81

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Solution

The fourth proportional to 20,256.58, 27,955.44 and 11,305.81 is: 15,602.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.58 : 27,955.44 = 11,305.81 : x
  2. Step 2: Convert to fraction form
    20,256.58/27,955.44 = 11,305.81/x
  3. Step 3: Cross multiply
    20,256.58x = 27,955.44 × 11,305.81
  4. Step 4: Simplify right side
    20,256.58x = 316,058,893.11
  5. Step 5: Solve for x
    x = 316,058,893.11/20,256.58
  6. Step 6: Final answer
    x = 15,602.78

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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.