Home / 20,656.14-30,983.67-5,073.90

Finding the Fourth Proportional to 20,656.14, 30,983.67 and 5,073.90

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Solution

The fourth proportional to 20,656.14, 30,983.67 and 5,073.90 is: 7,610.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656.14 : 30,983.67 = 5,073.90 : x
  2. Step 2: Convert to fraction form
    20,656.14/30,983.67 = 5,073.90/x
  3. Step 3: Cross multiply
    20,656.14x = 30,983.67 × 5,073.90
  4. Step 4: Simplify right side
    20,656.14x = 157,208,043.21
  5. Step 5: Solve for x
    x = 157,208,043.21/20,656.14
  6. Step 6: Final answer
    x = 7,610.72

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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.