Home / 42,651.27-63,976.91-21,861.51

Finding the Fourth Proportional to 42,651.27, 63,976.91 and 21,861.51

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Solution

The fourth proportional to 42,651.27, 63,976.91 and 21,861.51 is: 32,792.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,651.27 : 63,976.91 = 21,861.51 : x
  2. Step 2: Convert to fraction form
    42,651.27/63,976.91 = 21,861.51/x
  3. Step 3: Cross multiply
    42,651.27x = 63,976.91 × 21,861.51
  4. Step 4: Simplify right side
    42,651.27x = 1,398,631,857.73
  5. Step 5: Solve for x
    x = 1,398,631,857.73/42,651.27
  6. Step 6: Final answer
    x = 32,792.27

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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.