Home / 20,352.20-30,528.30-14,447.30

Finding the Fourth Proportional to 20,352.20, 30,528.30 and 14,447.30

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Solution

The fourth proportional to 20,352.20, 30,528.30 and 14,447.30 is: 21,670.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,352.20 : 30,528.30 = 14,447.30 : x
  2. Step 2: Convert to fraction form
    20,352.20/30,528.30 = 14,447.30/x
  3. Step 3: Cross multiply
    20,352.20x = 30,528.30 × 14,447.30
  4. Step 4: Simplify right side
    20,352.20x = 441,051,508.59
  5. Step 5: Solve for x
    x = 441,051,508.59/20,352.20
  6. Step 6: Final answer
    x = 21,670.95

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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.