Home / 38,642.61-57,953.21-13,679.37

Finding the Fourth Proportional to 38,642.61, 57,953.21 and 13,679.37

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Solution

The fourth proportional to 38,642.61, 57,953.21 and 13,679.37 is: 20,515.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,642.61 : 57,953.21 = 13,679.37 : x
  2. Step 2: Convert to fraction form
    38,642.61/57,953.21 = 13,679.37/x
  3. Step 3: Cross multiply
    38,642.61x = 57,953.21 × 13,679.37
  4. Step 4: Simplify right side
    38,642.61x = 792,763,402.28
  5. Step 5: Solve for x
    x = 792,763,402.28/38,642.61
  6. Step 6: Final answer
    x = 20,515.27

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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.