Home / 14,374.40-21,559.68-3,985.28

Finding the Fourth Proportional to 14,374.40, 21,559.68 and 3,985.28

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Solution

The fourth proportional to 14,374.40, 21,559.68 and 3,985.28 is: 5,977.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,374.40 : 21,559.68 = 3,985.28 : x
  2. Step 2: Convert to fraction form
    14,374.40/21,559.68 = 3,985.28/x
  3. Step 3: Cross multiply
    14,374.40x = 21,559.68 × 3,985.28
  4. Step 4: Simplify right side
    14,374.40x = 85,921,361.51
  5. Step 5: Solve for x
    x = 85,921,361.51/14,374.40
  6. Step 6: Final answer
    x = 5,977.39

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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.