Home / 30,279.26-45,399.45-20,892.98

Finding the Fourth Proportional to 30,279.26, 45,399.45 and 20,892.98

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Solution

The fourth proportional to 30,279.26, 45,399.45 and 20,892.98 is: 31,326.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279.26 : 45,399.45 = 20,892.98 : x
  2. Step 2: Convert to fraction form
    30,279.26/45,399.45 = 20,892.98/x
  3. Step 3: Cross multiply
    30,279.26x = 45,399.45 × 20,892.98
  4. Step 4: Simplify right side
    30,279.26x = 948,529,800.86
  5. Step 5: Solve for x
    x = 948,529,800.86/30,279.26
  6. Step 6: Final answer
    x = 31,326.06

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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.