Home / 21,456.63-29,610.09-13,073.13

Finding the Fourth Proportional to 21,456.63, 29,610.09 and 13,073.13

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Solution

The fourth proportional to 21,456.63, 29,610.09 and 13,073.13 is: 18,040.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456.63 : 29,610.09 = 13,073.13 : x
  2. Step 2: Convert to fraction form
    21,456.63/29,610.09 = 13,073.13/x
  3. Step 3: Cross multiply
    21,456.63x = 29,610.09 × 13,073.13
  4. Step 4: Simplify right side
    21,456.63x = 387,096,555.88
  5. Step 5: Solve for x
    x = 387,096,555.88/21,456.63
  6. Step 6: Final answer
    x = 18,040.88

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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.