Home / 20,742.73-31,095.40-14,081.49

Finding the Fourth Proportional to 20,742.73, 31,095.40 and 14,081.49

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Solution

The fourth proportional to 20,742.73, 31,095.40 and 14,081.49 is: 21,109.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,742.73 : 31,095.40 = 14,081.49 : x
  2. Step 2: Convert to fraction form
    20,742.73/31,095.40 = 14,081.49/x
  3. Step 3: Cross multiply
    20,742.73x = 31,095.40 × 14,081.49
  4. Step 4: Simplify right side
    20,742.73x = 437,869,564.15
  5. Step 5: Solve for x
    x = 437,869,564.15/20,742.73
  6. Step 6: Final answer
    x = 21,109.54

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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.