Home / 21,072.63-29,080.51-11,512.48

Finding the Fourth Proportional to 21,072.63, 29,080.51 and 11,512.48

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Solution

The fourth proportional to 21,072.63, 29,080.51 and 11,512.48 is: 15,887.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,072.63 : 29,080.51 = 11,512.48 : x
  2. Step 2: Convert to fraction form
    21,072.63/29,080.51 = 11,512.48/x
  3. Step 3: Cross multiply
    21,072.63x = 29,080.51 × 11,512.48
  4. Step 4: Simplify right side
    21,072.63x = 334,788,789.76
  5. Step 5: Solve for x
    x = 334,788,789.76/21,072.63
  6. Step 6: Final answer
    x = 15,887.38

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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.