Home / 43,686.94-65,530.47-18,725.03

Finding the Fourth Proportional to 43,686.94, 65,530.47 and 18,725.03

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Solution

The fourth proportional to 43,686.94, 65,530.47 and 18,725.03 is: 28,087.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,686.94 : 65,530.47 = 18,725.03 : x
  2. Step 2: Convert to fraction form
    43,686.94/65,530.47 = 18,725.03/x
  3. Step 3: Cross multiply
    43,686.94x = 65,530.47 × 18,725.03
  4. Step 4: Simplify right side
    43,686.94x = 1,227,060,016.66
  5. Step 5: Solve for x
    x = 1,227,060,016.66/43,686.94
  6. Step 6: Final answer
    x = 28,087.57

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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.