Home / 19,731.53-27,229.92-10,779.62

Finding the Fourth Proportional to 19,731.53, 27,229.92 and 10,779.62

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Solution

The fourth proportional to 19,731.53, 27,229.92 and 10,779.62 is: 14,876.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.53 : 27,229.92 = 10,779.62 : x
  2. Step 2: Convert to fraction form
    19,731.53/27,229.92 = 10,779.62/x
  3. Step 3: Cross multiply
    19,731.53x = 27,229.92 × 10,779.62
  4. Step 4: Simplify right side
    19,731.53x = 293,528,028.82
  5. Step 5: Solve for x
    x = 293,528,028.82/19,731.53
  6. Step 6: Final answer
    x = 14,876.09

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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.