Home / 33,269.31-45,911.21-18,928.80

Finding the Fourth Proportional to 33,269.31, 45,911.21 and 18,928.80

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Solution

The fourth proportional to 33,269.31, 45,911.21 and 18,928.80 is: 26,121.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,269.31 : 45,911.21 = 18,928.80 : x
  2. Step 2: Convert to fraction form
    33,269.31/45,911.21 = 18,928.80/x
  3. Step 3: Cross multiply
    33,269.31x = 45,911.21 × 18,928.80
  4. Step 4: Simplify right side
    33,269.31x = 869,044,017.20
  5. Step 5: Solve for x
    x = 869,044,017.20/33,269.31
  6. Step 6: Final answer
    x = 26,121.49

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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.