Home / 20,323.15-28,046.45-11,370.58

Finding the Fourth Proportional to 20,323.15, 28,046.45 and 11,370.58

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Solution

The fourth proportional to 20,323.15, 28,046.45 and 11,370.58 is: 15,691.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.15 : 28,046.45 = 11,370.58 : x
  2. Step 2: Convert to fraction form
    20,323.15/28,046.45 = 11,370.58/x
  3. Step 3: Cross multiply
    20,323.15x = 28,046.45 × 11,370.58
  4. Step 4: Simplify right side
    20,323.15x = 318,904,361.75
  5. Step 5: Solve for x
    x = 318,904,361.75/20,323.15
  6. Step 6: Final answer
    x = 15,691.68

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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.