Home / 43,538.68-65,308.02-12,369.88

Finding the Fourth Proportional to 43,538.68, 65,308.02 and 12,369.88

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Solution

The fourth proportional to 43,538.68, 65,308.02 and 12,369.88 is: 18,554.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,538.68 : 65,308.02 = 12,369.88 : x
  2. Step 2: Convert to fraction form
    43,538.68/65,308.02 = 12,369.88/x
  3. Step 3: Cross multiply
    43,538.68x = 65,308.02 × 12,369.88
  4. Step 4: Simplify right side
    43,538.68x = 807,852,370.44
  5. Step 5: Solve for x
    x = 807,852,370.44/43,538.68
  6. Step 6: Final answer
    x = 18,554.82

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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.