Home / 20,454.58-30,718.86-18,808.12

Finding the Fourth Proportional to 20,454.58, 30,718.86 and 18,808.12

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Solution

The fourth proportional to 20,454.58, 30,718.86 and 18,808.12 is: 28,246.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.58 : 30,718.86 = 18,808.12 : x
  2. Step 2: Convert to fraction form
    20,454.58/30,718.86 = 18,808.12/x
  3. Step 3: Cross multiply
    20,454.58x = 30,718.86 × 18,808.12
  4. Step 4: Simplify right side
    20,454.58x = 577,764,005.14
  5. Step 5: Solve for x
    x = 577,764,005.14/20,454.58
  6. Step 6: Final answer
    x = 28,246.19

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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.