Home / 26,679-39,986.58-11,871.18

Finding the Fourth Proportional to 26,679, 39,986.58 and 11,871.18

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Solution

The fourth proportional to 26,679, 39,986.58 and 11,871.18 is: 17,792.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,679 : 39,986.58 = 11,871.18 : x
  2. Step 2: Convert to fraction form
    26,679/39,986.58 = 11,871.18/x
  3. Step 3: Cross multiply
    26,679x = 39,986.58 × 11,871.18
  4. Step 4: Simplify right side
    26,679x = 474,687,888.76
  5. Step 5: Solve for x
    x = 474,687,888.76/26,679
  6. Step 6: Final answer
    x = 17,792.57

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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.