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Finding the Fourth Proportional to 27,306.66, 37,686.81 and 15,372.34

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Solution

The fourth proportional to 27,306.66, 37,686.81 and 15,372.34 is: 21,215.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,306.66 : 37,686.81 = 15,372.34 : x
  2. Step 2: Convert to fraction form
    27,306.66/37,686.81 = 15,372.34/x
  3. Step 3: Cross multiply
    27,306.66x = 37,686.81 × 15,372.34
  4. Step 4: Simplify right side
    27,306.66x = 579,334,456.84
  5. Step 5: Solve for x
    x = 579,334,456.84/27,306.66
  6. Step 6: Final answer
    x = 21,215.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.