Home / 30,276.32-41,758.98-20,847.92

Finding the Fourth Proportional to 30,276.32, 41,758.98 and 20,847.92

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Solution

The fourth proportional to 30,276.32, 41,758.98 and 20,847.92 is: 28,754.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,276.32 : 41,758.98 = 20,847.92 : x
  2. Step 2: Convert to fraction form
    30,276.32/41,758.98 = 20,847.92/x
  3. Step 3: Cross multiply
    30,276.32x = 41,758.98 × 20,847.92
  4. Step 4: Simplify right side
    30,276.32x = 870,587,874.32
  5. Step 5: Solve for x
    x = 870,587,874.32/30,276.32
  6. Step 6: Final answer
    x = 28,754.75

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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.