Home / 43,740.41-65,610.93-18,759.38

Finding the Fourth Proportional to 43,740.41, 65,610.93 and 18,759.38

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Solution

The fourth proportional to 43,740.41, 65,610.93 and 18,759.38 is: 28,139.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,740.41 : 65,610.93 = 18,759.38 : x
  2. Step 2: Convert to fraction form
    43,740.41/65,610.93 = 18,759.38/x
  3. Step 3: Cross multiply
    43,740.41x = 65,610.93 × 18,759.38
  4. Step 4: Simplify right side
    43,740.41x = 1,230,820,368.02
  5. Step 5: Solve for x
    x = 1,230,820,368.02/43,740.41
  6. Step 6: Final answer
    x = 28,139.21

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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.