Home / 14,387.60-21,581.40-3,999.35

Finding the Fourth Proportional to 14,387.60, 21,581.40 and 3,999.35

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Solution

The fourth proportional to 14,387.60, 21,581.40 and 3,999.35 is: 5,999.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,387.60 : 21,581.40 = 3,999.35 : x
  2. Step 2: Convert to fraction form
    14,387.60/21,581.40 = 3,999.35/x
  3. Step 3: Cross multiply
    14,387.60x = 21,581.40 × 3,999.35
  4. Step 4: Simplify right side
    14,387.60x = 86,311,572.09
  5. Step 5: Solve for x
    x = 86,311,572.09/14,387.60
  6. Step 6: Final answer
    x = 5,999.03

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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.