Home / 13,681.14-20,521.72-3,292.89

Finding the Fourth Proportional to 13,681.14, 20,521.72 and 3,292.89

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Solution

The fourth proportional to 13,681.14, 20,521.72 and 3,292.89 is: 4,939.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,681.14 : 20,521.72 = 3,292.89 : x
  2. Step 2: Convert to fraction form
    13,681.14/20,521.72 = 3,292.89/x
  3. Step 3: Cross multiply
    13,681.14x = 20,521.72 × 3,292.89
  4. Step 4: Simplify right side
    13,681.14x = 67,575,801.41
  5. Step 5: Solve for x
    x = 67,575,801.41/13,681.14
  6. Step 6: Final answer
    x = 4,939.34

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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.