Home / 30,272.64-45,331.20-18,550.32

Finding the Fourth Proportional to 30,272.64, 45,331.20 and 18,550.32

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Solution

The fourth proportional to 30,272.64, 45,331.20 and 18,550.32 is: 27,777.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,272.64 : 45,331.20 = 18,550.32 : x
  2. Step 2: Convert to fraction form
    30,272.64/45,331.20 = 18,550.32/x
  3. Step 3: Cross multiply
    30,272.64x = 45,331.20 × 18,550.32
  4. Step 4: Simplify right side
    30,272.64x = 840,908,265.98
  5. Step 5: Solve for x
    x = 840,908,265.98/30,272.64
  6. Step 6: Final answer
    x = 27,777.83

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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.