Home / 21,525.09-29,710.82-13,027.24

Finding the Fourth Proportional to 21,525.09, 29,710.82 and 13,027.24

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Solution

The fourth proportional to 21,525.09, 29,710.82 and 13,027.24 is: 17,981.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,525.09 : 29,710.82 = 13,027.24 : x
  2. Step 2: Convert to fraction form
    21,525.09/29,710.82 = 13,027.24/x
  3. Step 3: Cross multiply
    21,525.09x = 29,710.82 × 13,027.24
  4. Step 4: Simplify right side
    21,525.09x = 387,049,982.74
  5. Step 5: Solve for x
    x = 387,049,982.74/21,525.09
  6. Step 6: Final answer
    x = 17,981.34

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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.