Home / 20,976,895.62-28,952,136.95-11,809,538.37

Finding the Fourth Proportional to 20,976,895.62, 28,952,136.95 and 11,809,538.37

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Solution

The fourth proportional to 20,976,895.62, 28,952,136.95 and 11,809,538.37 is: 16,299,426.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,976,895.62 : 28,952,136.95 = 11,809,538.37 : x
  2. Step 2: Convert to fraction form
    20,976,895.62/28,952,136.95 = 11,809,538.37/x
  3. Step 3: Cross multiply
    20,976,895.62x = 28,952,136.95 × 11,809,538.37
  4. Step 4: Simplify right side
    20,976,895.62x = 341,911,372,145,472.06
  5. Step 5: Solve for x
    x = 341,911,372,145,472.06/20,976,895.62
  6. Step 6: Final answer
    x = 16,299,426.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.