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Finding the Fourth Proportional to 28,672.70, 43,009.05 and 22,767.80

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Solution

The fourth proportional to 28,672.70, 43,009.05 and 22,767.80 is: 34,151.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,672.70 : 43,009.05 = 22,767.80 : x
  2. Step 2: Convert to fraction form
    28,672.70/43,009.05 = 22,767.80/x
  3. Step 3: Cross multiply
    28,672.70x = 43,009.05 × 22,767.80
  4. Step 4: Simplify right side
    28,672.70x = 979,221,448.59
  5. Step 5: Solve for x
    x = 979,221,448.59/28,672.70
  6. Step 6: Final answer
    x = 34,151.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.