Home / 43,229.49-64,847.87-13,639.38

Finding the Fourth Proportional to 43,229.49, 64,847.87 and 13,639.38

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Solution

The fourth proportional to 43,229.49, 64,847.87 and 13,639.38 is: 20,460.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,229.49 : 64,847.87 = 13,639.38 : x
  2. Step 2: Convert to fraction form
    43,229.49/64,847.87 = 13,639.38/x
  3. Step 3: Cross multiply
    43,229.49x = 64,847.87 × 13,639.38
  4. Step 4: Simplify right side
    43,229.49x = 884,484,741.12
  5. Step 5: Solve for x
    x = 884,484,741.12/43,229.49
  6. Step 6: Final answer
    x = 20,460.22

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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.