Home / 19,671.80-27,166.34-16,822.68

Finding the Fourth Proportional to 19,671.80, 27,166.34 and 16,822.68

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Solution

The fourth proportional to 19,671.80, 27,166.34 and 16,822.68 is: 23,231.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,671.80 : 27,166.34 = 16,822.68 : x
  2. Step 2: Convert to fraction form
    19,671.80/27,166.34 = 16,822.68/x
  3. Step 3: Cross multiply
    19,671.80x = 27,166.34 × 16,822.68
  4. Step 4: Simplify right side
    19,671.80x = 457,010,644.59
  5. Step 5: Solve for x
    x = 457,010,644.59/19,671.80
  6. Step 6: Final answer
    x = 23,231.77

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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.