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Finding the Fourth Proportional to 28,983.60, 43,410.60 and 22,388.40

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Solution

The fourth proportional to 28,983.60, 43,410.60 and 22,388.40 is: 33,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,983.60 : 43,410.60 = 22,388.40 : x
  2. Step 2: Convert to fraction form
    28,983.60/43,410.60 = 22,388.40/x
  3. Step 3: Cross multiply
    28,983.60x = 43,410.60 × 22,388.40
  4. Step 4: Simplify right side
    28,983.60x = 971,893,877.04
  5. Step 5: Solve for x
    x = 971,893,877.04/28,983.60
  6. Step 6: Final answer
    x = 33,532.55

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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.