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Finding the Fourth Proportional to 26,426, 39,639 and 10,010

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Solution

The fourth proportional to 26,426, 39,639 and 10,010 is: 15,015

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,426 : 39,639 = 10,010 : x
  2. Step 2: Convert to fraction form
    26,426/39,639 = 10,010/x
  3. Step 3: Cross multiply
    26,426x = 39,639 × 10,010
  4. Step 4: Simplify right side
    26,426x = 396,786,390
  5. Step 5: Solve for x
    x = 396,786,390/26,426
  6. Step 6: Final answer
    x = 15,015

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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.