Home / 23,813.13-35,729.43-13,143.81

Finding the Fourth Proportional to 23,813.13, 35,729.43 and 13,143.81

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Solution

The fourth proportional to 23,813.13, 35,729.43 and 13,143.81 is: 19,721.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,813.13 : 35,729.43 = 13,143.81 : x
  2. Step 2: Convert to fraction form
    23,813.13/35,729.43 = 13,143.81/x
  3. Step 3: Cross multiply
    23,813.13x = 35,729.43 × 13,143.81
  4. Step 4: Simplify right side
    23,813.13x = 469,620,839.33
  5. Step 5: Solve for x
    x = 469,620,839.33/23,813.13
  6. Step 6: Final answer
    x = 19,721.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.