Home / 43,530.61-65,293.65-11,938.36

Finding the Fourth Proportional to 43,530.61, 65,293.65 and 11,938.36

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Solution

The fourth proportional to 43,530.61, 65,293.65 and 11,938.36 is: 17,906.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,530.61 : 65,293.65 = 11,938.36 : x
  2. Step 2: Convert to fraction form
    43,530.61/65,293.65 = 11,938.36/x
  3. Step 3: Cross multiply
    43,530.61x = 65,293.65 × 11,938.36
  4. Step 4: Simplify right side
    43,530.61x = 779,499,099.41
  5. Step 5: Solve for x
    x = 779,499,099.41/43,530.61
  6. Step 6: Final answer
    x = 17,906.92

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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.