Home / 28,148.80-38,854.20-16,826.64

Finding the Fourth Proportional to 28,148.80, 38,854.20 and 16,826.64

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Solution

The fourth proportional to 28,148.80, 38,854.20 and 16,826.64 is: 23,226.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,148.80 : 38,854.20 = 16,826.64 : x
  2. Step 2: Convert to fraction form
    28,148.80/38,854.20 = 16,826.64/x
  3. Step 3: Cross multiply
    28,148.80x = 38,854.20 × 16,826.64
  4. Step 4: Simplify right side
    28,148.80x = 653,785,635.89
  5. Step 5: Solve for x
    x = 653,785,635.89/28,148.80
  6. Step 6: Final answer
    x = 23,226.06

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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.