Home / 43,311.16-64,974.84-13,721.05

Finding the Fourth Proportional to 43,311.16, 64,974.84 and 13,721.05

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Solution

The fourth proportional to 43,311.16, 64,974.84 and 13,721.05 is: 20,584.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,311.16 : 64,974.84 = 13,721.05 : x
  2. Step 2: Convert to fraction form
    43,311.16/64,974.84 = 13,721.05/x
  3. Step 3: Cross multiply
    43,311.16x = 64,974.84 × 13,721.05
  4. Step 4: Simplify right side
    43,311.16x = 891,523,028.38
  5. Step 5: Solve for x
    x = 891,523,028.38/43,311.16
  6. Step 6: Final answer
    x = 20,584.14

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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.