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Finding the Fourth Proportional to 28,668.60, 43,035.30 and 22,123.80

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Solution

The fourth proportional to 28,668.60, 43,035.30 and 22,123.80 is: 33,210.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,668.60 : 43,035.30 = 22,123.80 : x
  2. Step 2: Convert to fraction form
    28,668.60/43,035.30 = 22,123.80/x
  3. Step 3: Cross multiply
    28,668.60x = 43,035.30 × 22,123.80
  4. Step 4: Simplify right side
    28,668.60x = 952,104,370.14
  5. Step 5: Solve for x
    x = 952,104,370.14/28,668.60
  6. Step 6: Final answer
    x = 33,210.70

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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.