Home / 27,311.00-37,689.90-15,374.78

Finding the Fourth Proportional to 27,311.00, 37,689.90 and 15,374.78

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Solution

The fourth proportional to 27,311.00, 37,689.90 and 15,374.78 is: 21,217.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,311.00 : 37,689.90 = 15,374.78 : x
  2. Step 2: Convert to fraction form
    27,311.00/37,689.90 = 15,374.78/x
  3. Step 3: Cross multiply
    27,311.00x = 37,689.90 × 15,374.78
  4. Step 4: Simplify right side
    27,311.00x = 579,473,732.27
  5. Step 5: Solve for x
    x = 579,473,732.27/27,311.00
  6. Step 6: Final answer
    x = 21,217.59

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1.5x scale

Why These Related Problems?

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