Home / 19,886.75-29,765.20-14,620.37

Finding the Fourth Proportional to 19,886.75, 29,765.20 and 14,620.37

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Solution

The fourth proportional to 19,886.75, 29,765.20 and 14,620.37 is: 21,882.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,886.75 : 29,765.20 = 14,620.37 : x
  2. Step 2: Convert to fraction form
    19,886.75/29,765.20 = 14,620.37/x
  3. Step 3: Cross multiply
    19,886.75x = 29,765.20 × 14,620.37
  4. Step 4: Simplify right side
    19,886.75x = 435,178,237.12
  5. Step 5: Solve for x
    x = 435,178,237.12/19,886.75
  6. Step 6: Final answer
    x = 21,882.82

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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.