Home / 21,575.88-29,767.58-12,617.04

Finding the Fourth Proportional to 21,575.88, 29,767.58 and 12,617.04

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Solution

The fourth proportional to 21,575.88, 29,767.58 and 12,617.04 is: 17,407.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575.88 : 29,767.58 = 12,617.04 : x
  2. Step 2: Convert to fraction form
    21,575.88/29,767.58 = 12,617.04/x
  3. Step 3: Cross multiply
    21,575.88x = 29,767.58 × 12,617.04
  4. Step 4: Simplify right side
    21,575.88x = 375,578,535.64
  5. Step 5: Solve for x
    x = 375,578,535.64/21,575.88
  6. Step 6: Final answer
    x = 17,407.33

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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.