Home / 20,072.64-27,703.68-11,573.28

Finding the Fourth Proportional to 20,072.64, 27,703.68 and 11,573.28

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Solution

The fourth proportional to 20,072.64, 27,703.68 and 11,573.28 is: 15,973.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.64 : 27,703.68 = 11,573.28 : x
  2. Step 2: Convert to fraction form
    20,072.64/27,703.68 = 11,573.28/x
  3. Step 3: Cross multiply
    20,072.64x = 27,703.68 × 11,573.28
  4. Step 4: Simplify right side
    20,072.64x = 320,622,445.67
  5. Step 5: Solve for x
    x = 320,622,445.67/20,072.64
  6. Step 6: Final answer
    x = 15,973.11

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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.