Home / 21,046.14-29,027.31-13,581.18

Finding the Fourth Proportional to 21,046.14, 29,027.31 and 13,581.18

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Solution

The fourth proportional to 21,046.14, 29,027.31 and 13,581.18 is: 18,731.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046.14 : 29,027.31 = 13,581.18 : x
  2. Step 2: Convert to fraction form
    21,046.14/29,027.31 = 13,581.18/x
  3. Step 3: Cross multiply
    21,046.14x = 29,027.31 × 13,581.18
  4. Step 4: Simplify right side
    21,046.14x = 394,225,122.03
  5. Step 5: Solve for x
    x = 394,225,122.03/21,046.14
  6. Step 6: Final answer
    x = 18,731.47

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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.