Home / 20,905,037.88-28,849,761-11,613,311.52

Finding the Fourth Proportional to 20,905,037.88, 28,849,761 and 11,613,311.52

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Solution

The fourth proportional to 20,905,037.88, 28,849,761 and 11,613,311.52 is: 16,026,819.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,905,037.88 : 28,849,761 = 11,613,311.52 : x
  2. Step 2: Convert to fraction form
    20,905,037.88/28,849,761 = 11,613,311.52/x
  3. Step 3: Cross multiply
    20,905,037.88x = 28,849,761 × 11,613,311.52
  4. Step 4: Simplify right side
    20,905,037.88x = 335,041,261,770,546.69
  5. Step 5: Solve for x
    x = 335,041,261,770,546.69/20,905,037.88
  6. Step 6: Final answer
    x = 16,026,819.17

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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.