Home / 43,330.88-64,998.64-12,168.56

Finding the Fourth Proportional to 43,330.88, 64,998.64 and 12,168.56

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Solution

The fourth proportional to 43,330.88, 64,998.64 and 12,168.56 is: 18,253.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,330.88 : 64,998.64 = 12,168.56 : x
  2. Step 2: Convert to fraction form
    43,330.88/64,998.64 = 12,168.56/x
  3. Step 3: Cross multiply
    43,330.88x = 64,998.64 × 12,168.56
  4. Step 4: Simplify right side
    43,330.88x = 790,939,850.76
  5. Step 5: Solve for x
    x = 790,939,850.76/43,330.88
  6. Step 6: Final answer
    x = 18,253.49

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1.5x scale

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.