Home / 43,070.68-64,604.18-13,487.86

Finding the Fourth Proportional to 43,070.68, 64,604.18 and 13,487.86

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Solution

The fourth proportional to 43,070.68, 64,604.18 and 13,487.86 is: 20,231.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,070.68 : 64,604.18 = 13,487.86 : x
  2. Step 2: Convert to fraction form
    43,070.68/64,604.18 = 13,487.86/x
  3. Step 3: Cross multiply
    43,070.68x = 64,604.18 × 13,487.86
  4. Step 4: Simplify right side
    43,070.68x = 871,372,135.25
  5. Step 5: Solve for x
    x = 871,372,135.25/43,070.68
  6. Step 6: Final answer
    x = 20,231.21

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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.