Home / 21,018,529.20-31,527,793.80-17,670,450.90

Finding the Fourth Proportional to 21,018,529.20, 31,527,793.80 and 17,670,450.90

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Solution

The fourth proportional to 21,018,529.20, 31,527,793.80 and 17,670,450.90 is: 26,505,676.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,018,529.20 : 31,527,793.80 = 17,670,450.90 : x
  2. Step 2: Convert to fraction form
    21,018,529.20/31,527,793.80 = 17,670,450.90/x
  3. Step 3: Cross multiply
    21,018,529.20x = 31,527,793.80 × 17,670,450.90
  4. Step 4: Simplify right side
    21,018,529.20x = 557,110,332,328,224.38
  5. Step 5: Solve for x
    x = 557,110,332,328,224.38/21,018,529.20
  6. Step 6: Final answer
    x = 26,505,676.35

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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.