Home / 35,816.20-53,705.40-12,115.60

Finding the Fourth Proportional to 35,816.20, 53,705.40 and 12,115.60

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Solution

The fourth proportional to 35,816.20, 53,705.40 and 12,115.60 is: 18,167.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,816.20 : 53,705.40 = 12,115.60 : x
  2. Step 2: Convert to fraction form
    35,816.20/53,705.40 = 12,115.60/x
  3. Step 3: Cross multiply
    35,816.20x = 53,705.40 × 12,115.60
  4. Step 4: Simplify right side
    35,816.20x = 650,673,144.24
  5. Step 5: Solve for x
    x = 650,673,144.24/35,816.20
  6. Step 6: Final answer
    x = 18,167.01

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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.