Home / 39,611.88-59,426.73-13,315.91

Finding the Fourth Proportional to 39,611.88, 59,426.73 and 13,315.91

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Solution

The fourth proportional to 39,611.88, 59,426.73 and 13,315.91 is: 19,976.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,611.88 : 59,426.73 = 13,315.91 : x
  2. Step 2: Convert to fraction form
    39,611.88/59,426.73 = 13,315.91/x
  3. Step 3: Cross multiply
    39,611.88x = 59,426.73 × 13,315.91
  4. Step 4: Simplify right side
    39,611.88x = 791,320,691.14
  5. Step 5: Solve for x
    x = 791,320,691.14/39,611.88
  6. Step 6: Final answer
    x = 19,976.85

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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.