Home / 20,789.22-28,695.96-16,548.06

Finding the Fourth Proportional to 20,789.22, 28,695.96 and 16,548.06

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Solution

The fourth proportional to 20,789.22, 28,695.96 and 16,548.06 is: 22,841.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,789.22 : 28,695.96 = 16,548.06 : x
  2. Step 2: Convert to fraction form
    20,789.22/28,695.96 = 16,548.06/x
  3. Step 3: Cross multiply
    20,789.22x = 28,695.96 × 16,548.06
  4. Step 4: Simplify right side
    20,789.22x = 474,862,467.84
  5. Step 5: Solve for x
    x = 474,862,467.84/20,789.22
  6. Step 6: Final answer
    x = 22,841.76

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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.