Home / 20,148.05-27,796.35-11,648.61

Finding the Fourth Proportional to 20,148.05, 27,796.35 and 11,648.61

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Solution

The fourth proportional to 20,148.05, 27,796.35 and 11,648.61 is: 16,070.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.05 : 27,796.35 = 11,648.61 : x
  2. Step 2: Convert to fraction form
    20,148.05/27,796.35 = 11,648.61/x
  3. Step 3: Cross multiply
    20,148.05x = 27,796.35 × 11,648.61
  4. Step 4: Simplify right side
    20,148.05x = 323,788,840.57
  5. Step 5: Solve for x
    x = 323,788,840.57/20,148.05
  6. Step 6: Final answer
    x = 16,070.48

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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.