Home / 21,551.99-29,742.89-12,604.73

Finding the Fourth Proportional to 21,551.99, 29,742.89 and 12,604.73

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Solution

The fourth proportional to 21,551.99, 29,742.89 and 12,604.73 is: 17,395.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551.99 : 29,742.89 = 12,604.73 : x
  2. Step 2: Convert to fraction form
    21,551.99/29,742.89 = 12,604.73/x
  3. Step 3: Cross multiply
    21,551.99x = 29,742.89 × 12,604.73
  4. Step 4: Simplify right side
    21,551.99x = 374,900,886.13
  5. Step 5: Solve for x
    x = 374,900,886.13/21,551.99
  6. Step 6: Final answer
    x = 17,395.19

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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.