Home / 43,639.09-65,458.65-12,474.34

Finding the Fourth Proportional to 43,639.09, 65,458.65 and 12,474.34

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Solution

The fourth proportional to 43,639.09, 65,458.65 and 12,474.34 is: 18,711.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,639.09 : 65,458.65 = 12,474.34 : x
  2. Step 2: Convert to fraction form
    43,639.09/65,458.65 = 12,474.34/x
  3. Step 3: Cross multiply
    43,639.09x = 65,458.65 × 12,474.34
  4. Step 4: Simplify right side
    43,639.09x = 816,553,456.04
  5. Step 5: Solve for x
    x = 816,553,456.04/43,639.09
  6. Step 6: Final answer
    x = 18,711.51

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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.