Home / 42,605.13-63,915.90-19,231.59

Finding the Fourth Proportional to 42,605.13, 63,915.90 and 19,231.59

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Solution

The fourth proportional to 42,605.13, 63,915.90 and 19,231.59 is: 28,851.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,605.13 : 63,915.90 = 19,231.59 : x
  2. Step 2: Convert to fraction form
    42,605.13/63,915.90 = 19,231.59/x
  3. Step 3: Cross multiply
    42,605.13x = 63,915.90 × 19,231.59
  4. Step 4: Simplify right side
    42,605.13x = 1,229,204,383.28
  5. Step 5: Solve for x
    x = 1,229,204,383.28/42,605.13
  6. Step 6: Final answer
    x = 28,851.09

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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.