Home / 43,639.29-65,458.94-12,048.31

Finding the Fourth Proportional to 43,639.29, 65,458.94 and 12,048.31

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Solution

The fourth proportional to 43,639.29, 65,458.94 and 12,048.31 is: 18,072.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,639.29 : 65,458.94 = 12,048.31 : x
  2. Step 2: Convert to fraction form
    43,639.29/65,458.94 = 12,048.31/x
  3. Step 3: Cross multiply
    43,639.29x = 65,458.94 × 12,048.31
  4. Step 4: Simplify right side
    43,639.29x = 788,669,622.97
  5. Step 5: Solve for x
    x = 788,669,622.97/43,639.29
  6. Step 6: Final answer
    x = 18,072.47

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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.