Home / 36,021.02-54,025.05-21,212.60

Finding the Fourth Proportional to 36,021.02, 54,025.05 and 21,212.60

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Solution

The fourth proportional to 36,021.02, 54,025.05 and 21,212.60 is: 31,815.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,021.02 : 54,025.05 = 21,212.60 : x
  2. Step 2: Convert to fraction form
    36,021.02/54,025.05 = 21,212.60/x
  3. Step 3: Cross multiply
    36,021.02x = 54,025.05 × 21,212.60
  4. Step 4: Simplify right side
    36,021.02x = 1,146,011,775.63
  5. Step 5: Solve for x
    x = 1,146,011,775.63/36,021.02
  6. Step 6: Final answer
    x = 31,815.08

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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.