Home / 19,731.57-27,229.12-10,779.11

Finding the Fourth Proportional to 19,731.57, 27,229.12 and 10,779.11

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Solution

The fourth proportional to 19,731.57, 27,229.12 and 10,779.11 is: 14,874.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.57 : 27,229.12 = 10,779.11 : x
  2. Step 2: Convert to fraction form
    19,731.57/27,229.12 = 10,779.11/x
  3. Step 3: Cross multiply
    19,731.57x = 27,229.12 × 10,779.11
  4. Step 4: Simplify right side
    19,731.57x = 293,505,625.79
  5. Step 5: Solve for x
    x = 293,505,625.79/19,731.57
  6. Step 6: Final answer
    x = 14,874.93

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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.