Home / 42,299.75-63,439.23-18,613.24

Finding the Fourth Proportional to 42,299.75, 63,439.23 and 18,613.24

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Solution

The fourth proportional to 42,299.75, 63,439.23 and 18,613.24 is: 27,915.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,299.75 : 63,439.23 = 18,613.24 : x
  2. Step 2: Convert to fraction form
    42,299.75/63,439.23 = 18,613.24/x
  3. Step 3: Cross multiply
    42,299.75x = 63,439.23 × 18,613.24
  4. Step 4: Simplify right side
    42,299.75x = 1,180,809,613.41
  5. Step 5: Solve for x
    x = 1,180,809,613.41/42,299.75
  6. Step 6: Final answer
    x = 27,915.29

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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.