Home / 20,256.37-27,955.19-11,305.63

Finding the Fourth Proportional to 20,256.37, 27,955.19 and 11,305.63

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Solution

The fourth proportional to 20,256.37, 27,955.19 and 11,305.63 is: 15,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.37 : 27,955.19 = 11,305.63 : x
  2. Step 2: Convert to fraction form
    20,256.37/27,955.19 = 11,305.63/x
  3. Step 3: Cross multiply
    20,256.37x = 27,955.19 × 11,305.63
  4. Step 4: Simplify right side
    20,256.37x = 316,051,034.72
  5. Step 5: Solve for x
    x = 316,051,034.72/20,256.37
  6. Step 6: Final answer
    x = 15,602.55

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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.