Home / 21,061,806.30-31,592,709.45-17,873,160.30

Finding the Fourth Proportional to 21,061,806.30, 31,592,709.45 and 17,873,160.30

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Solution

The fourth proportional to 21,061,806.30, 31,592,709.45 and 17,873,160.30 is: 26,809,740.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,061,806.30 : 31,592,709.45 = 17,873,160.30 : x
  2. Step 2: Convert to fraction form
    21,061,806.30/31,592,709.45 = 17,873,160.30/x
  3. Step 3: Cross multiply
    21,061,806.30x = 31,592,709.45 × 17,873,160.30
  4. Step 4: Simplify right side
    21,061,806.30x = 564,661,560,311,174.88
  5. Step 5: Solve for x
    x = 564,661,560,311,174.88/21,061,806.30
  6. Step 6: Final answer
    x = 26,809,740.45

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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.