Home / 20,826.20-31,268.10-16,448.60

Finding the Fourth Proportional to 20,826.20, 31,268.10 and 16,448.60

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Solution

The fourth proportional to 20,826.20, 31,268.10 and 16,448.60 is: 24,695.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,826.20 : 31,268.10 = 16,448.60 : x
  2. Step 2: Convert to fraction form
    20,826.20/31,268.10 = 16,448.60/x
  3. Step 3: Cross multiply
    20,826.20x = 31,268.10 × 16,448.60
  4. Step 4: Simplify right side
    20,826.20x = 514,316,469.66
  5. Step 5: Solve for x
    x = 514,316,469.66/20,826.20
  6. Step 6: Final answer
    x = 24,695.65

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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.