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Finding the Fourth Proportional to 28,663.60, 43,027.80 and 22,118.80

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Solution

The fourth proportional to 28,663.60, 43,027.80 and 22,118.80 is: 33,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,663.60 : 43,027.80 = 22,118.80 : x
  2. Step 2: Convert to fraction form
    28,663.60/43,027.80 = 22,118.80/x
  3. Step 3: Cross multiply
    28,663.60x = 43,027.80 × 22,118.80
  4. Step 4: Simplify right side
    28,663.60x = 951,723,302.64
  5. Step 5: Solve for x
    x = 951,723,302.64/28,663.60
  6. Step 6: Final answer
    x = 33,203.20

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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.