Home / 43,886.20-65,796.90-18,905.80

Finding the Fourth Proportional to 43,886.20, 65,796.90 and 18,905.80

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Solution

The fourth proportional to 43,886.20, 65,796.90 and 18,905.80 is: 28,344.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,886.20 : 65,796.90 = 18,905.80 : x
  2. Step 2: Convert to fraction form
    43,886.20/65,796.90 = 18,905.80/x
  3. Step 3: Cross multiply
    43,886.20x = 65,796.90 × 18,905.80
  4. Step 4: Simplify right side
    43,886.20x = 1,243,943,032.02
  5. Step 5: Solve for x
    x = 1,243,943,032.02/43,886.20
  6. Step 6: Final answer
    x = 28,344.74

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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.