Home / 28,579.60-42,869.40-22,018.60

Finding the Fourth Proportional to 28,579.60, 42,869.40 and 22,018.60

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Solution

The fourth proportional to 28,579.60, 42,869.40 and 22,018.60 is: 33,027.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.60 : 42,869.40 = 22,018.60 : x
  2. Step 2: Convert to fraction form
    28,579.60/42,869.40 = 22,018.60/x
  3. Step 3: Cross multiply
    28,579.60x = 42,869.40 × 22,018.60
  4. Step 4: Simplify right side
    28,579.60x = 943,924,170.84
  5. Step 5: Solve for x
    x = 943,924,170.84/28,579.60
  6. Step 6: Final answer
    x = 33,027.90

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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.