Home / 43,660.81-65,436.44-18,671.52

Finding the Fourth Proportional to 43,660.81, 65,436.44 and 18,671.52

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Solution

The fourth proportional to 43,660.81, 65,436.44 and 18,671.52 is: 27,983.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,660.81 : 65,436.44 = 18,671.52 : x
  2. Step 2: Convert to fraction form
    43,660.81/65,436.44 = 18,671.52/x
  3. Step 3: Cross multiply
    43,660.81x = 65,436.44 × 18,671.52
  4. Step 4: Simplify right side
    43,660.81x = 1,221,797,798.19
  5. Step 5: Solve for x
    x = 1,221,797,798.19/43,660.81
  6. Step 6: Final answer
    x = 27,983.86

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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.