Home / 20,378.24-30,577.72-9,857.26

Finding the Fourth Proportional to 20,378.24, 30,577.72 and 9,857.26

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Solution

The fourth proportional to 20,378.24, 30,577.72 and 9,857.26 is: 14,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,378.24 : 30,577.72 = 9,857.26 : x
  2. Step 2: Convert to fraction form
    20,378.24/30,577.72 = 9,857.26/x
  3. Step 3: Cross multiply
    20,378.24x = 30,577.72 × 9,857.26
  4. Step 4: Simplify right side
    20,378.24x = 301,412,536.25
  5. Step 5: Solve for x
    x = 301,412,536.25/20,378.24
  6. Step 6: Final answer
    x = 14,790.90

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1.5x scale

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.