Home / 43,562.28-65,315.34-18,618.60

Finding the Fourth Proportional to 43,562.28, 65,315.34 and 18,618.60

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Solution

The fourth proportional to 43,562.28, 65,315.34 and 18,618.60 is: 27,915.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,562.28 : 65,315.34 = 18,618.60 : x
  2. Step 2: Convert to fraction form
    43,562.28/65,315.34 = 18,618.60/x
  3. Step 3: Cross multiply
    43,562.28x = 65,315.34 × 18,618.60
  4. Step 4: Simplify right side
    43,562.28x = 1,216,080,189.32
  5. Step 5: Solve for x
    x = 1,216,080,189.32/43,562.28
  6. Step 6: Final answer
    x = 27,915.90

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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.