Home / 43,274.08-64,917.48-13,685.20

Finding the Fourth Proportional to 43,274.08, 64,917.48 and 13,685.20

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Solution

The fourth proportional to 43,274.08, 64,917.48 and 13,685.20 is: 20,529.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,274.08 : 64,917.48 = 13,685.20 : x
  2. Step 2: Convert to fraction form
    43,274.08/64,917.48 = 13,685.20/x
  3. Step 3: Cross multiply
    43,274.08x = 64,917.48 × 13,685.20
  4. Step 4: Simplify right side
    43,274.08x = 888,408,697.30
  5. Step 5: Solve for x
    x = 888,408,697.30/43,274.08
  6. Step 6: Final answer
    x = 20,529.81

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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.