Home / 20,317.70-28,023.36-14,343.14

Finding the Fourth Proportional to 20,317.70, 28,023.36 and 14,343.14

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Solution

The fourth proportional to 20,317.70, 28,023.36 and 14,343.14 is: 19,782.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.70 : 28,023.36 = 14,343.14 : x
  2. Step 2: Convert to fraction form
    20,317.70/28,023.36 = 14,343.14/x
  3. Step 3: Cross multiply
    20,317.70x = 28,023.36 × 14,343.14
  4. Step 4: Simplify right side
    20,317.70x = 401,942,975.75
  5. Step 5: Solve for x
    x = 401,942,975.75/20,317.70
  6. Step 6: Final answer
    x = 19,782.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.