Home / 42,493.11-63,735.49-12,911.23

Finding the Fourth Proportional to 42,493.11, 63,735.49 and 12,911.23

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Solution

The fourth proportional to 42,493.11, 63,735.49 and 12,911.23 is: 19,365.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,493.11 : 63,735.49 = 12,911.23 : x
  2. Step 2: Convert to fraction form
    42,493.11/63,735.49 = 12,911.23/x
  3. Step 3: Cross multiply
    42,493.11x = 63,735.49 × 12,911.23
  4. Step 4: Simplify right side
    42,493.11x = 822,903,570.55
  5. Step 5: Solve for x
    x = 822,903,570.55/42,493.11
  6. Step 6: Final answer
    x = 19,365.58

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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.