Home / 14,515.84-21,770.08-3,985.88

Finding the Fourth Proportional to 14,515.84, 21,770.08 and 3,985.88

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Solution

The fourth proportional to 14,515.84, 21,770.08 and 3,985.88 is: 5,977.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.84 : 21,770.08 = 3,985.88 : x
  2. Step 2: Convert to fraction form
    14,515.84/21,770.08 = 3,985.88/x
  3. Step 3: Cross multiply
    14,515.84x = 21,770.08 × 3,985.88
  4. Step 4: Simplify right side
    14,515.84x = 86,772,926.47
  5. Step 5: Solve for x
    x = 86,772,926.47/14,515.84
  6. Step 6: Final answer
    x = 5,977.81

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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.