Home / 21,525.77-29,705.54-11,965.34

Finding the Fourth Proportional to 21,525.77, 29,705.54 and 11,965.34

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Solution

The fourth proportional to 21,525.77, 29,705.54 and 11,965.34 is: 16,512.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,525.77 : 29,705.54 = 11,965.34 : x
  2. Step 2: Convert to fraction form
    21,525.77/29,705.54 = 11,965.34/x
  3. Step 3: Cross multiply
    21,525.77x = 29,705.54 × 11,965.34
  4. Step 4: Simplify right side
    21,525.77x = 355,436,900.42
  5. Step 5: Solve for x
    x = 355,436,900.42/21,525.77
  6. Step 6: Final answer
    x = 16,512.16

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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.